I found my reason to hook up my PS3 and it is, a HDTV. I bought one Sunday. A 32" 720p it looked alot smaller in the store because I was debating on 32" or 25". And in the store next to all the bigger screened models 25 looked small. So when I got home and hooked it up, the 32" was way bigger than I needed, but I'll keep it.
So I just finished hooking up my PS3 and setting up my account, my user name is dolacide...surprised? ;) I still don't have any PS3 games or an HDMI cable, I'll get those at a later time, I just wanted my PS3 up just in case the PS3 version of GTAIV is superior to the 360.
So now I'm all set for this spring and summer of games I've been waiting for. Just have to get an HDMI cable before the release of MGS4, and I'm set.