You could try some Astra. They're sort of like early King Crimson mixed with early Pink Floyd, or if you would be open to considering something really different (but still proggy) and be willing to accept music in with mandarin lyrics, check out stuff from Cold Fairyland's album "Seeds On The Ground".Basically, it is progressive rock mixed with chinese classical, and mostly instrumental (or that album is at least, as well as being a mostly accoustic album). I also have their album "live 2005", and some of their frontwoman's solo stuff (all of which I really like), and it's all quite different from album to album (but not incoherently so), but if you're willing to try something like that, give it a go, it's really quite refreshing.