Well I see you like Rick Wakeman, so are you into Yes? Yes are one of my favourite bands.
Some good old prog bands to check out would be Yes, King Crimson, Camel, Rush, Genesis, Jethro Tull. Some prog metal bands to check out would be Dream Theater (my favourite band), Fates Warning, Symphony X.
Anyway, PF and Radiohead are two bands I love also. I like Zeppelin and Tool, but I'm not into them as much as I used to be...