Here's a few more to add:

Lynyrd Skynyrd: Just about anything from Street Survivors album.
Their 3-guitar work is fantastic, Steve Gaines woulda been one of the best ever

Clapton: Slowhand is one of the best, unplugged is excellent
One of the most versatile guitarists and songwriters

Robin Trower: Bridge of Sighs
Underrated master of the caster.

Stevie Ray Vaughan: Just about anything
One of the all time great blues-rockers

Dixie Dregs: Cruise Control
Steve Morse is another very good and very versatile guitar great

Eric Johnson: Cliffs of Dover
Another guitargod. Tone for days!

Glass Harp: You Whispered Something
Phil Keaggy is THE most amazing guitarist I've ever seen.

Molly Hatchet: Dreams I'll never See
More excellent multi-guitar harmony work

Eagles: most
One of my all-time faves. killer lyrics, great guitar work, kind of a genre all their own.

Yes: The Yes Album
Just because It's the first album I actually had to replace because I played it so much.

Pink Floyd: Dark Side of the Moon
The second album I had to replace because I played it so much :)

Steely Dan: loved them all, but favorite is probably Aja
One of the great studio bands..unfortunately



Well thats 12, I'll stop now!