But you can click the 2008 Dining Plan FAQ on the Dining Plan Board, access the PDF of the Dining Plan brochure, and see the list of restaurants.
For adults, I'd pick Boma (breakfast or dinner), Biergarten (lunch or dinner) or the Yacht Club Galley breakfast. Tusker House is intriguing but not for breakfast (I avoid character meals.)
Downloading and printing the WDW PDF file is a nice way to have that list handy... that was what we did for 2007 and have done already for 2008. Thankfully the update in November did add a few more places (ecspecially DTD).
If you don't mind recommendations, I would say don't miss Boma's and Crystal Palace... they are both awesome!
Boma's has a bit more adult theme (although children can and will enjoy it) and while CP is a character buffet it is wonderful! You would not feel out of place there by any means (we were a 39 year old, 40 year old, and 16 year old)!