I upgraded yesterday to Beryl 0.2, and besides some minor upgrade problems, this desktop manager is looking spiffy. Lunapark6.com has a nice roundup at the state of the current Linux desktop, which has way more eye candy than OSX and Vista together.
I really like trailfocus, which makes unfocused windows transparent. I don't like a cluttered desktop, so trailfocus really emphasizes the current active application.