For any of you who have current gen consoles (360/PS3), you’ll probably want to get those versions of Rock Band so you can take advantage of the downloadable content (of which there will be TONS). However, I still don’t have a 360 in my room yet (we have one downstairs in our living room),
so I’m going to get the PS2 version (plus I already have two PS2 Guitar Hero guitars, which are compatible). The 360 version isn’t bundled with a wireless guitar anyway. Pricing was finally announced, being cheaper than most people had expected — $170 for current gen, $160 for PS2. But, you can get it a little cheaper than that: YesAsia has the U.S. PS2 version bundle for $10 off — $150 for a guitar, the drumset, a microphone, and the game — with free shipping! I already have some credit there, so that’s where I’ll be getting it. You can pre-order it now!
Interestingly, the PS3 Rock Band guitars are said* to be compatible with the PS2 version, so if you buy any extra guitars, you might want to get the PS3 version. That way you can take them to a friend’s house who has a PS3, or if you eventually get a PS3 you’ll already have a guitar.
* Source: GameSpot’s podcast, The Hotspot.