I would like to get into more prog rock. I really like the first UK album (I'm a bit of a Holdsworth fan) and I own the Yes three-disc best of. I listen to Classic Rock radio, so I've heard a good amount of Rush. Can you recommend some stuff the casual listener may not be familiar with? Hidden gems? Any essential prog listening? I like the stuff from the 70's, but I'd be willing to try some more contemporary bands. I especially enjoy bands with prominent bass, but don't we all?