Yeah, it all really fits together, and it's all inspired by classical music and the blues. It's weird, because some people I know are like, "prog... that's not music", which is total crap. I mean, when my brother first heard Pink Floyd's dark Side of The Moon (AWESOME album, btw) he's like, "it's not music, it's just... sounds". Not true. Secondly, Pink Floyd isn't All Sounds, fer the record, they have brilltastic musos involved and Roger Waters writes amazing lyrics (as did Syd Barrett in the earlier years). But personally, I adore prog. Old and new, really. But my faves are Floyd, King Crimson, ELP, Yes... all that classic 70s stuff. And good luck!
"Wasted"
-Def Leppard.