With Unicode fonts becoming more and more the standard as we plug away at our little Greek and Hebrew (and proto-Coptic!) projects, it becomes more and more important to encourage the development of good fonts that meet the needs of our specific niche fields.
Newsforge has a great write-up regarding the Gentium font and its exciting presence on the open source market now. Victor Gaultney created the font on his Mac using FontLab as part of his Master's thesis project. It includes a good range of Unicode Extended Greek, and will now get superbly better with the contributions of more folks now that it is open source.
Thanks to Tom Elliot at the Stoa Consortium.