This site (http://www.enoriaka.gr/index.php?option=content&task=view&id=748&Itemid=2) hosts and freely distributes a number of classic (good, bad, and truly camp ) typefaces, which support Greek and Ancient Greek character sets. I haven't thoroughly checked them, but they seem rip-offs from popular designs (etc SKGaramond seems to be the version that Microsoft ships, with polytonic Greek support). The quality is quite good for semi-professional use, especially for those looking to add some Greek versions of classic (or camp) typefaces to their arsenal.
Since the site is in Greek, I am hot-linking the download links (they are actually located in the table, in the middle/center of the page). According to the site, the fonts have been designed by mr Spiros Krontiris
preview of the 72 typefaces http://www.enoriaka.gr/fonts/enoriaka.gr_fonts_deigmata.zip
part 1 http://www.enoriaka.gr/fonts/enoriaka.gr_fonts_a.zip
part 2 http://www.enoriaka.gr/fonts/enoriaka.gr_fonts_b.zip
part 3 http://www.enoriaka.gr/fonts/enoriaka.gr_fonts_c.zip
part 4 http://www.enoriaka.gr/fonts/enoriaka.gr_fonts_d.zip
part 5 http://www.enoriaka.gr/fonts/enoriaka.gr_fonts_e.zip