I'm a horrible prog rocker.
I'm almost just like Ehwmatt. I have nearly every album by Pink Floyd, Yes, Genesis, Rush, Camel, and all that lot.
However, I too jump over most of the 80s stuff outside of King's X, Queensryche and Marillion. I have nearly every album from both of them, and Marillion is one of my all-time favorites, but there's little else from the 80s prog-wise that I've listened to extensively.
Then I listen to tons of Dream Theater, Porcupine Tree, Muse, Coheed & Cambria, Pure Reason Revolution, Radiohead, Tool, Riverside, Pain of Salvation, and all the top modern prog bands.... but not much IQ, Pendragon, or Arena, or any of those guys.
I know, I'm horrible.
At least this could serve as a wake-up call to get myself more involved in Neo Prog haha.
I'll share some of my favorite modern prog for you guys though. I know it goes against the thread title but most everyone's been through the classics a time or two.
Muse- "Map of the Problematique"
http://www.youtube.com/watch?v=q2DOZCz_fGM
Dream Theater- "The Dark Eternal Night"
http://www.youtube.com/watch?v=EkF4JD2rO3Q
Pure Reason Revolution- "Deus Ex Machina"
http://www.youtube.com/watch?v=-hCDv5kWd5E
Porcupine Tree- "Hatesong"
http://www.youtube.com/watch?v=e4f3PoAoNqA
Coheed & Cambria- "Welcome Home"
http://www.youtube.com/watch?v=Who0iQt_OjI