Document:

Exhibit 10.9

                                                     June 30, 2005

Manhattan Maritime Enterprises, Inc.
645 Fifth Avenue
New York, New York 10022

Ladenburg Thalmann & Co. Inc.
590 Madison Avenue
34th Floor
New York, New York 10022

              Re:    Initial Public Offering
                     -----------------------

Gentlemen:

              The  undersigned  stockholder of Manhattan  Maritime  Enterprises,
Inc.   ("Company"),   in  consideration   of  Ladenburg   Thalmann  &  Co.  Inc.
("Ladenburg")  entering  into  a  letter  of  intent  ("Letter  of  Intent")  to
underwrite an initial public  offering of the securities of the Company  ("IPO")
and embarking on the IPO process,  hereby agrees as follows (certain capitalized
terms used herein are defined in paragraph 10 hereof):

              1.     If the Company  solicits  approval of its stockholders of a
Business  Combination,  the undersigned will vote all Insider Shares owned by it
in  accordance  with the  majority  of the votes cast by the  holders of the IPO
Shares.

              2.     In the  event  that  the  Company  fails  to  consummate  a
Business Combination within 18 months from the effective date ("Effective Date")
of the  registration  statement  relating  to the IPO (or 24  months  under  the
circumstances  described in the prospectus relating to the IPO), the undersigned
will vote all Insider  Shares owned by it in favor of the Company's  decision to
liquidate. The undersigned and each controlling person of the undersigned (each,
a "Control Person") hereby waives any and all right, title, interest or claim of
any kind in or to any  distribution  of the Trust Fund (as defined in the Letter
of  Intent)  and any  remaining  net  assets of the  Company as a result of such
liquidation  with respect to his Insider Shares  ("Claim") and hereby waives any
Claim the  undersigned and any Control Person may have in the future as a result
of, or arising out of, any contracts or agreements with the Company and will not
seek recourse against the Trust Fund for any reason whatsoever.

              3.     The  undersigned  acknowledges  and agrees that the Company
will

<PAGE>

Manhattan Maritime Enterprises, Inc.
Ladenburg Thalmann & Co. Inc.
June 30, 2005
Page 2

not  consummate  any  Business  Combination  which  involves a company  which is
affiliated  with any current  officer,  director or  stockholder  of the Company
unless the Company  obtains an opinion from an  independent  investment  banking
firm reasonably acceptable to Ladenburg that the business combination is fair to
the Company's stockholders from a financial perspective.

              4.     Neither  the  undersigned,  any  Control  Person,  nor  any
Affiliate of the undersigned will be entitled to receive and will not accept any
compensation for services rendered to the Company prior to or in connection with
the  consummation  of the Business  Combination;  provided that the  undersigned
shall be entitled  to  reimbursement  from the  Company for their  out-of-pocket
expenses  incurred  in  connection  with  seeking  and  consummating  a Business
Combination.

              5.     Neither  the  undersigned,  any  Control  Person,  nor  any
Affiliate  of the  undersigned  will be entitled to receive or accept a finder's
fee or any other  compensation in the event the  undersigned,  any member of the
family of the  undersigned  or any  Affiliate  of the  undersigned  originates a
Business Combination.

              6.     The  undersigned  will  escrow its  Insider  Shares for the
three year period  commencing  on the  Effective  Date subject to the terms of a
Stock Escrow  Agreement  which the Company will enter into with the  undersigned
and an escrow agent acceptable to the Company.

              7.     The  undersigned's  Questionnaire  furnished to the Company
and  Ladenburg  and  annexed  as  Exhibit A hereto is true and  accurate  in all
respects. The undersigned represents and warrants that no Control Person:

       (a)    is subject  to, or a  respondent  in, any legal  action  for,  any
injunction,  cease-and-desist order or order or stipulation to desist or refrain
from  any  act  or  practice  relating  to the  offering  of  securities  in any
jurisdiction;

       (b)    has been convicted of or pleaded guilty to any crime (i) involving
any fraud or (ii) relating to any financial  transaction or handling of funds of
another person,  or (iii) pertaining to any dealings in any securities and he is
not currently a defendant in any such criminal proceeding; and

       (c)    has been  suspended or expelled from  membership in any securities
or  commodities  exchange or  association  or had a  securities  or  commodities
license or registration denied, suspended or revoked.
<PAGE>

Manhattan Maritime Enterprises, Inc.
Ladenburg Thalmann & Co. Inc.
June 30, 2005
Page 4

              8.     The undersigned has full right and power, without violating
any agreement by which it is, or any of its Affiliates are, bound, to enter into
this letter agreement.

              9.     This letter  agreement  shall be governed by and  construed
and  enforced  in  accordance  with the laws of the State of New  York,  without
giving  effect  to  conflicts  of  law  principles  that  would  result  in  the
application of the  substantive  laws of another  jurisdiction.  The undersigned
hereby (i) agrees that any action,  proceeding  or claim against him arising out
of or relating in any way to this letter  agreement  (a  "Proceeding")  shall be
brought and enforced in the courts of the State of New York of the United States
of America for the Southern  District of New York,  and  irrevocably  submits to
such  jurisdiction,  which  jurisdiction  shall be  exclusive,  (ii)  waives any
objection  to such  exclusive  jurisdiction  and that such courts  represent  an
inconvenient  forum and (iii)  irrevocably  agrees to appoint  Gersten,  Savage,
Kaplowitz,  Wolf & Marcus,  LLP as agent for the service of process in the State
of New York to  receive,  for the  undersigned  and on his  behalf,  service  of
process  in any  Proceeding.  If for any  reason  such agent is unable to act as
such, the undersigned will promptly notify the Company and Ladenburg and appoint
a substitute  agent  acceptable to each of the Company and  Ladenburg  within 30
days and nothing in this  letter will affect the right of either  party to serve
process in any other manner permitted by law.

              10.    As used herein, (i) a "Business  Combination" shall mean an
acquisition  by merger,  capital  stock  exchange,  asset or stock  acquisition,
reorganization  or otherwise,  of an operating  business;  (ii) "Insiders" shall
mean all officers,  directors and stockholders of the Company  immediately prior
to the IPO; (iii) "Insider  Shares" shall mean all of the shares of Common Stock
of the Company  owned by an Insider  prior to the IPO;  (iv) "IPO Shares"  shall
mean the shares of Common Stock issued in the Company's IPO; and (v) "Affiliate"
shall have the meaning  ascribed  to it in Rule 12b-2 of the  General  Rules and
Regulations under the Securities Exchange Act of 1934, as amended.

                                            POTOMAC CAPITAL PARTNERS, LP

                                            By: /s/ Paul J. Solit
                                               ---------------------------------
                                                    Paul J. Solit
                                                    PresidentExhibit 10.10

                                                     June 30, 2005

Manhattan Maritime Enterprises, Inc.
645 Fifth Avenue
New York, New York 10022

Ladenburg Thalmann & Co. Inc.
590 Madison Avenue
34th Floor
New York, New York 10022

              Re:    Initial Public Offering
                     -----------------------

Gentlemen:

              The  undersigned  stockholder of Manhattan  Maritime  Enterprises,
Inc.   ("Company"),   in  consideration   of  Ladenburg   Thalmann  &  Co.  Inc.
("Ladenburg")  entering  into  a  letter  of  intent  ("Letter  of  Intent")  to
underwrite an initial public  offering of the securities of the Company  ("IPO")
and embarking on the IPO process,  hereby agrees as follows (certain capitalized
terms used herein are defined in paragraph 10 hereof):

              1.     If the Company  solicits  approval of its stockholders of a
Business  Combination,  the undersigned will vote all Insider Shares owned by it
in  accordance  with the  majority  of the votes cast by the  holders of the IPO
Shares.

              2.     In the  event  that  the  Company  fails  to  consummate  a
Business Combination within 18 months from the effective date ("Effective Date")
of the  registration  statement  relating  to the IPO (or 24  months  under  the
circumstances  described in the prospectus relating to the IPO), the undersigned
will vote all Insider  Shares owned by it in favor of the Company's  decision to
liquidate. The undersigned and each controlling person of the undersigned (each,
a "Control Person") hereby waives any and all right, title, interest or claim of
any kind in or to any  distribution  of the  Trust  Fund and any  remaining  net
assets  of the  Company  as a result of such  liquidation  with  respect  to his
Insider  Shares  ("Claim") and hereby waives any Claim the  undersigned  and any
Control  Person may have in the  future as a result  of, or arising  out of, any
contracts or agreements with the Company and will not seek recourse  against the
Trust Fund for any reason whatsoever.

              3.     The  undersigned  acknowledges  and agrees that the Company
will

<PAGE>

Manhattan Maritime Enterprises, Inc.
Ladenburg Thalmann & Co. Inc.
June 30, 2005
Page 2

not  consummate  any  Business  Combination  which  involves a company  which is
affiliated  with any current  officer,  director or  stockholder  of the Company
unless the Company  obtains an opinion from an  independent  investment  banking
firm reasonably acceptable to Ladenburg that the business combination is fair to
the Company's stockholders from a financial perspective.

              4.     Neither  the  undersigned,  any  Control  Person,  nor  any
Affiliate of the undersigned will be entitled to receive and will not accept any
compensation for services rendered to the Company prior to or in connection with
the  consummation  of the Business  Combination;  provided that the  undersigned
shall be entitled  to  reimbursement  from the  Company for their  out-of-pocket
expenses  incurred  in  connection  with  seeking  and  consummating  a Business
Combination.

              5.     Neither  the  undersigned,  any  Control  Person,  nor  any
Affiliate  of the  undersigned  will be entitled to receive or accept a finder's
fee or any other  compensation in the event the  undersigned,  any member of the
family of the  undersigned  or any  Affiliate  of the  undersigned  originates a
Business Combination.

              6.     The  undersigned  will  escrow its  Insider  Shares for the
three year period  commencing  on the  Effective  Date subject to the terms of a
Stock Escrow  Agreement  which the Company will enter into with the  undersigned
and an escrow agent acceptable to the Company.

              7.     The  undersigned's  Questionnaire  furnished to the Company
and  Ladenburg  and  annexed  as  Exhibit A hereto is true and  accurate  in all
respects. The undersigned represents and warrants that no Control Person:

       (a)    is subject  to, or a  respondent  in, any legal  action  for,  any
injunction,  cease-and-desist order or order or stipulation to desist or refrain
from  any  act  or  practice  relating  to the  offering  of  securities  in any
jurisdiction;

       (b)    has been convicted of or pleaded guilty to any crime (i) involving
any fraud or (ii) relating to any financial  transaction or handling of funds of
another person,  or (iii) pertaining to any dealings in any securities and he is
not currently a defendant in any such criminal proceeding; and

       (c)    has been  suspended or expelled from  membership in any securities
or  commodities  exchange or  association  or had a  securities  or  commodities
license or registration denied, suspended or revoked.
<PAGE>

Manhattan Maritime Enterprises, Inc.
Ladenburg Thalmann & Co. Inc.
June 30, 2005
Page 3

              8.     The undersigned has full right and power, without violating
any agreement by which it is, or any of its Affiliates are, bound, to enter into
this letter agreement.

              9.     This letter  agreement  shall be governed by and  construed
and  enforced  in  accordance  with the laws of the State of New  York,  without
giving  effect  to  conflicts  of  law  principles  that  would  result  in  the
application of the  substantive  laws of another  jurisdiction.  The undersigned
hereby (i) agrees that any action,  proceeding  or claim against him arising out
of or relating in any way to this letter  agreement  (a  "Proceeding")  shall be
brought and enforced in the courts of the State of New York of the United States
of America for the Southern  District of New York,  and  irrevocably  submits to
such  jurisdiction,  which  jurisdiction  shall be  exclusive,  (ii)  waives any
objection  to such  exclusive  jurisdiction  and that such courts  represent  an
inconvenient  forum and (iii)  irrevocably  agrees to appoint  Gersten,  Savage,
Kaplowitz,  Wolf & Marcus,  LLP as agent for the service of process in the State
of New York to  receive,  for the  undersigned  and on his  behalf,  service  of
process  in any  Proceeding.  If for any  reason  such agent is unable to act as
such, the undersigned will promptly notify the Company and Ladenburg and appoint
a substitute  agent  acceptable to each of the Company and  Ladenburg  within 30
days and nothing in this  letter will affect the right of either  party to serve
process in any other manner permitted by law.

              10.    As used herein, (i) a "Business  Combination" shall mean an
acquisition  by merger,  capital  stock  exchange,  asset or stock  acquisition,
reorganization  or otherwise,  of an operating  business;  (ii) "Insiders" shall
mean all officers,  directors and stockholders of the Company  immediately prior
to the IPO; (iii) "Insider  Shares" shall mean all of the shares of Common Stock
of the Company  owned by an Insider  prior to the IPO;  (iv) "IPO Shares"  shall
mean the shares of Common Stock issued in the Company's IPO; and (v) "Affiliate"
shall have the meaning  ascribed  to it in Rule 12b-2 of the  General  Rules and
Regulations under the Securities Exchange Act of 1934, as amended.

                                        POTOMAC CAPITAL INTERNATIONAL LTD.

                                        By:  /s/ Paul J. Solit
                                             -----------------------------------
                                               Paul J. Solit
                                               President

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