SketchUp 6 Pro
Is now available and is free to registered users of SU5 Pro or any other of the pro versions. Many new features including 3D text, new rendering styles, Photomatch and an application called Layout which will help you make professional looking presentations from your SU model.
I've been working with it since November in its beta form. It's way cool and for the Pro users, you can't complain about the upgrade price.
When I have some time I'll post some images of stuff I've done.
Irony: The opposite of Wrinkly