The fonts used in both the UBS text and the Nestle-Aland text of the Greek New Testament come from this company, and their products are used around the world. The site also provides information on fonts for languages other than Greek. The prices are high, but the fonts are very good quality and are in wide use. They are worth the investment. The Summer Intstitute of Linguistics provides software for linguists on both MacIntosh and Windows platforms.
Shoebox is a database management program designed especially for use by field linguists.
It is especially good at interlinearizing text and developing lexicons. It can also be used for cataloging field notes, anthropological information, and grammatical information. The latest versions for Mac and Windows are available from the SIL site. They even have self-paced training for Shoebox 4 on the site. Go to the Greek Language and Linguistics Gateway main page.