Alright, since we're using this threadspace:
1. Muse. Blackholes and Supernovas is a phenomenal album, but so is everything of theirs.
2. Bloodhound Gang. Nothing new since 2005, but great tunes and a great sense of humor.
3. Rapture. I recently got turned onto them.
4. Matisyahu. You may have heard of him, maybe not. Hecidic Jewish Reggae.
5. Nine Inch Nails' Year Zero album is good - far better than their last album.
6. The New Pornographers. Very easy to like.
7. The Go! Team. Still, one of my favorite "Top to Bottom Good" albums since Flaming Lips' "Yoshimi Battles the Pink Robots"
8. Manu Chao. I've mentioned him a dozen times before. Never mind the fact that a lot of the songs are in Spanish, this guy ROCKS.
9. Wolfmother. I know they were mentioned, I'm seconding them. Their sound is easily described: Led Sabbath.
10. Ween. OK, they have a new album out - it's an LP - but I'll mention them. Far too few people give them credit for their genius.