This chick is funny to watch (aside from boob jiggling):
http://www.youtube.com/watch?v=mwZ7InHuATU&feature=related
My point for posting this, it's the ION drum kit, it's made for Rock Band and it's better than that other P.O.S. and they're only around 250 bucks...I've read you can use them with vst drum plugins just like any midi trigger. Might be a better option for more serious-minded recording. They actually look more like a drum kit anyway, rather than some 4 pad setup like the RB drumkit (or having to buy 2 of them and rig them together like that first vid demonstrates).