Might as well...
Ambulance LTD
Barenaked Ladies
Beck
Billy Corgan (Smashing Pumpkins lead singer, his solo cd TheFutureEmbrace is awesome)
The Bravery
Coldplay
Dream Theatre
The Flaming Lips
Franz Ferdinand
Jonny Greenwood (of Radiohead, his soundtrack to Bodysong is incredible)
Kasabian
Keane
The Killers
Led Zepplin
The Mars Volta
Muse (if you've never heard Absolution, listen to it immediately. This CD is amazing.)
Nothing More (local SA band, drummer was on the Reagan Drumline...expect great things from these guys)
Oasis
Pearl Jam
Pink Floyd
Radiohead
The Rapture
Razorlight
Spoon
Wilco
...and about 1/2 of these bands are playing at Austin City Limits Festival this year. I'll be there...