I recentlky bought a PS3 and have fallen in love with it. The graphics are awesome. It looks so great and thats even without the HDMI cable I bought. You can create a user name which hooks up to the internet via wirelessly or with an ethernet cable. you can add friends and chat with others somewhat like AIM. it will tell you when your friends were last on and if they are currently on so you can invite them to play games with you or chat with them.
The PS3 holds music so you can upload your music and listen to it through your tv. You can also upload pictures and videos. There is also an online store where you can buy backgrounds and games without haveing to leave your livingroom. The PS3 is really user-friendly.
The only negative part of the new PS3 is the wireless ability. If you have laptops it fights with them for the signals. (Or something along those lines) My computer guy was telling me about it as I was having problems while i was playing. My screen kept saying there was a connection error and closed out of my current game while playing online. It only happens once in a while though.
Overall I find this system to be the best a I have ran across. I even like it more than the xbox360.