[WorthlessLiar]

If you're a TOOL fan and you don't own Peach: Giving Birth to a Stone you should.

If you like Floyd I'd definitely suggest Porcupine Tree: In Absentia. Some tracks sound a heckuva lot like Floyd but not in that rippoff way. More like paying homage to. I'd also recomend Opeth: Damnation. Its a death metal band doing a completely acoustic album. Damn good stuff.

For some miscellanious stuff that might appeal to you I'd suggest:

VAST: Visual Auditory Sensory Theater
Placebo: Without You I'm Nothing
Sunny Day Real Estate: How it Feels to be Something On
Mogwai: Rock Action