Wolfmother (more Led Zep that Led Zep ever were)
Belle & Sebastian (Life Persuit, nice and relaxed)
Muse (you can listen to all their albums in entirety on-line  at www.muse.mu, very forward thinking!)
Rufus Wainright
ZZ-top (the older stuff)
Pengion Cafe Orchestra (relaxed)

If I start listening to too much Radiohead, it means I'm in the first stages of depression, so I need to listen to lighter stuff like the Darkness. I took all the Radiohead MP3's off my PC about six months ago so I can only listen from CD in the car.