Ok, here's my listo...

Yes - (one of the best progressive rock bands out there, tho they have succumbed to 80's styles and changed somewhat drastically, but look at Pink)

Supertramp - (these keyboardists are increadible, i grew up with the music)

Alan Parsons - (just classic music really, nothing extremely special, but i did get into them before the Floyd, and it was great to learn he enginnered DSOTM)

Led Zepplin - (Just some great tunes)

The Beatles - (I mean, i don't like all their stuff, but alot of it is very nice, and i can play it on my guitar! )

And then their's those bands i've heard but a few tunes which i think are very nice: Radiohead, Peal Jam, The Doors, The Who.

and i must agree with Radiochair on the Bach thing, him and Vivaldi are just magnificent.

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