Saw
Rage Against the Machine
There first real concert back in August of 07 at Alpine Valley- Hands down the best live performance I have ever seen
Tom Petty - Just an all-around amazing show, must see if you get the chance
Foo Fighters - Another good one, great live band
Thats about all for the majors, been to a ton of smaller band concerts too. Concerts are the way to go, if you like a band, you awill kick youraself if you adon't make their concert.