The National set will probably be the best set of this coachella webcast thing, it starts around 10:20-10:25EST. most of these bands are trying to hard to be punk, wtf is up with that? convinced it's the hipsters. anyway, the stream is the best quality I've ever seen for a festival:
http://www.youtube.com/coachella (http://www.youtube.com/coachella)
still a TBA act. have no idea who is even playing tho.