I tried out Winterface and have been using it for a couple of days now. I would give it a thumbs up and it was just want I was looking for. It easy and simple to use and work with. I would recommend it to anyone who is looking for something to spie up there PPC.

The things I would change would be adding color to the Winterface set program Icons.
I agree with Requiem about the a slim bar at the top of the screen with network, battery, wlan and 3g status.