Polish "prog" music? I'd be interested to know about bands etc.

I still refuse to believe that Geddy Lee, of Polish descent refused to play in Poland, despite promises made on Wandering the Face of the Earth. Later on My Effin' Life he said that "Poland is antisemitic, blah blah blah.

Should I know him?

Yes, actually my no. 1 musician who hath forsaken me and discriminated against me, because I'm Polish (not directly, but still).