I usually do poorly at video games that require joysticks or lots of movement. But, I am loving Guitar Hero III. When I play, I feel like the rock star I wish I was. :) When you do well, you earn "money" as a musician. You can then spend your money at the "guitar store" to buy clothes, new guitars, etc. You can also buy songs to play.
Recently I bought Mauvais Garcon by NAAST, a French rock group with very young members. They remind me a bit of The Beatles, but sound a little more like the Stray Cats. It's a really, really fun song to play. Here's a YouTube video you might enjoy. (The lyrics are all in French. I think the title means Bad Boy and the lyrics start out with someone admiring himsef in the mirror. I have no idea what the rest of the song is about.) Now to learn how to play it for real... :)