Tbh, right now the MacBook is a better deal. However it's rumoured that Apple will be refreshing the lineup soon on the MBPs, so the base will probably be bumped to 2.53, the next one 2.66 and so on 🙂
I'd say wait around and buy a new MBP when they're released, you get the FW800 port and the SD Card slot.
The Aluminium enclosure is also much more robust than the polycarbonate.