Already read Hyperion and it's sequel :) You're right, absolutely excellent sci-fi (though some of the politics and prejudices were annoying). There are in fact two more sequels, Endymion and Rise of Endymion, I believe they're called (could be a bit off on that, it's been a while)
Qwinn
Thanks for the tip, I'll have to check ebay for the other sequels now, too.