The PS3 Slim was officially announced today. Will be $299 USD, and the existing fat models should have their price cut to that now. This new one should suck less power, put out less heat, and run quieter. How much less is yet to be measured. It also doesn't seem to be shiny, so less obvious dust and fingerprints.

Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris