I enjoy playing Sabotage on Rock Band and I know So What'cha Want is going to be on Rock Band 2 (very excited about that). But I would like to see some Beastie Boys on the DLC preferably songs from Licensed to Ill. Heres my Beastie Boys song request list.
Rhymin' & Stealin'
(You Gotta) Fight for Your Right (To Party!)
No Sleep till Brooklyn
Pass the Mic
I don't know how some of these songs would work on Rock Band but hey look at Nine Inch Nails some of those songs on their don't even have guitar so it could happen.