John,

TypeTool 2 and ScanFont 4 for Mac from Fontlab Ltd. (http://www.fontlab.com ) should do the trick for you. ScanFont 4 will open an EPS/AI file and automatically separate the letters into separate glyphs, and export it to TypeTool 2, which you can use to build the TrueType font. There's a ScanFont+TypeTool pack for Mac for $199:
http://www.fontlab.com/Font-utilities/FontLab-Quickshop/
Of course, you can choose to get FontLab 4.6 instead of TypeTool 2, but that would be much more expensive

Regards,
Adam Twardoch
Fontlab Ltd.

John
Years ago Chank posted this on his site at
http://www.chank.com/howto/index.php
these are instructions on how to make a font and makes use of Fontographer, Photoshop and Illustrator. You could do the same with Type Tool 2 and Scan Font, but you will get the idea of how to do things from Chank. A bit wacky, but he started a lot of stuff which people still look at.