Yeah, I tried the singing (Simon wouldn't tell me I'm horrible, but I wouldn't make it to Hollywood) and the guitar, but the drums have me hooked. I'm trying to get past the medium level tour to unlock the rumored "Tom Sawyer" track. Yeah, I know, its a cover band, not Rush, but its still a Rush song, even if the vocals and drumming suck. the point is, I can finally play Neil's fills without having to really learn the drums and join a band, or look like a complete douche and air-drum (which every Rush fan does anyway, douchebaggery be damned).
Anyway, here's a sweet Windows app that lets you plug your Rock Band drums into the USB port of your computer and use them as a real drum machine!
UPDATE: A got skybox tix to the Ft. Lauderdale show through her job (for free!) and we unlocked the Tom Sawyer cover Friday night. Yeah, its not a good remake.