Day Two is the business, and the only day worth the $45 price.
Some noteables in order of when they appear:
Teagan & Sara
The Futureheads
Kasabian
Death Cab For Cutie
The Walkmen
Bloc Party
Oasis
And that's just the second day. Thievery Corporation is on the first
day, which has some other good bands including Keane, Kaiser Chiefs,
and Spoon, but absolutely nothing compares to the second. Coldplay is
on the third, but if you want to hear a better band, I suggest going to
the second and watching The Walkmen perform; They blow Coldplay out of
the damn water.
You can cycle through the full schedule
here and tell me if there are
any other bands I should be sure to check out.