It has (2 front) 3 rear USB ports, a specific port for the natal/new name that I cant remember, 1 HDMI port, 1 AV port, and 1 TOSLINK optical audio port. And obviously the power socket.
I will be getting one. On a side note, a friend of mine recently got the RROD, so went and bought the elite with the big hard drive (I forget which one but it costs the same as the new slim one) and is now gutted this has come out
I'll be getting one of these as soon as my current console packs up, it's making some increasingly weird noises so I'm not expecting it to last much longer!