Too many to mention (or remember), most notable:
Ozzfest 97: Ozzy Osbourne, Marilyn Manson, Pantera, Type O Negative, Fear Factory, Machine Head, Powerman 5000, Coal Chamber, Neurosis (didn't know who half of them were unfortunately)
Moondance Jam 98: Steppenwolf, Yes, Steve Miller Band, Foreigner, Alan Parsons Project, Kenny Wayne Shepard, Johnny Lang, Foghat
Page and Plant 98: One of the most amazing shows I've ever seen. They played many of the classics, no Stairway.
Aerosmith 98: Opener was Seven Mary Three in support of their second album still played mostly American Standard songs which was awesome. Aerosmith played mostly old stuff which was great and the show climaxed on a spotlight of a Joe Perry solo on Draw The Line. One of the better lighting/pyrotechnics I've seen.
Ozzfest 2000: Ozzy Osbourne, Pantera, Godsmack, Static-X, Incubus, Methods of Mayhem, P.O.D., Queens of the Stone Age, Soulfly at Floatrite Amphitheatre, Somerset WI one of the coolest places to spend an afternoon.
Tattoo The Earth (Somerset and Milwaukee): Slipknot, Slayer, Sevendust, Sepultura, hed (pe), Mudvayne, Hatebreed, Full Devil Jacket, Nothingface, Six Feet Under, Lamb of God, God Forbid, Dropkick Murphys, Sick of It All
Others: Ray Charles, Deftones, Tool, Crosby Stills Nash & Young
