HELP!!! Need help deciding between PS3 and Xbox360

[extempore20]

Hi guys,

So I'm a guy approaching 30, and the last system I owned was (no kidding) the original Nintendo. I've been more of a PC gamer, but in college, I got really into Halo and would play a lot.

So I've finally decided to enter the 21st century and buy a system but I'm totally torn. Trust me, I've read a ton of posts and it's only made me more undecided. I'm hoping to buy the system tomorrow during Black Friday...

So here are my particular preferences:
1) Cost - in terms of the console, it doesn't matter unless you think one will be much more expensive? (it seems ps3 is more cost-efficient in the long-run as you don't have to buy as many accessories and online play is free?)
2) Online game - I've always been a big online gamer and I've read the xbox is far superior to ps3... will I not be satisfied with the ps3 experience?
3) Games - I tend to like war/first person shooters (eg, Halo), although other genres I've been into in the past include games like Starcraft.
4) Ability to connect with strangers - Don't have many friends who are big gamers so I'd need to able to find quick games online with random people
5) Blue Ray - Already have one, don't need it in PS3
6) Playstation Move vs Kinect - I'd mostly use this for parties as a party trick I'd imagine.. to get people up and having fun. It seems the Kinect is definitely superior but the games out look boring (mostly family games). I'm guessing that will change in the future... But I'd like to know how big a difference you think this will make in the long run?
7) Durability - I hear Xbox dies a lot compared to PS3...

Okay, any suggestions would be greatly appreciated. Like I said, I'd like to buy this by tomorrow so please help!!