Most RAs live in Cambridge or Somerville. Staff can purchase bus and T passes through IEc. Do not plan on driving to work everyday, since IEc parking spaces are limited and most of the on-street parking is by town permit only.
Rents differ by town, number of roommates, and amenities.
Apartments in this price range with air conditioning and garages are very difficult to find. Keep in mind that many landlords typically require first month's rent, last month's rent, and a security deposit prior to moving in to an apartment, so budget accordingly. The Sunday edition of the Boston Globe and the Boston Phoenix typically provide the most comprehensive lists of available apartments. Both of these newspapers can be accessed via the Internet. Keep in mind that the Boston area has a very low vacancy rate, i.e., do not plan on finding an apartment in one or two days.