I know both gnome and KDE from my previous experience with linux.. I dont really have a preferance for either.. Im not a total linux n00b but im not far from it.
I looked at Kororaa but it seems thier XGL version has been removed because of a GPL violation..
http://kororaa.org/static.php?page=xgl-livecd
Also it seems novell has released XGL support for SUSE.. which is why i was leaning towards it.
http://www.novell.com/linux/xglrelease/