Speaking of which: yes, the odds are that your existing Rock Band controllers will work. Harmonix and Sumo Digital (the studio that will handle the PC port) are making sure that as many existing peripherals will work as possible. You shouldn't have to re-purchase gear or leave your existing hardware gathering dust in the closet.

If you like the idea, it'll take at least a $49 pledge to get a copy (minus instruments) around the fourth quarter of this year. That's not cheap, especially if you already own an earlier Rock Band title, but it beats the $60 you'd pay after launch. And look at it this way: if you've been frustrated at the lack of big-name music titles for computers, this is a way to make your voice heard.