Add me up as well. Coop is my favourite way to game. I still game a fair bit, but I don't game alone much anymore. I play an MMO once a week (Star Wars the Old Republic) because I'm a star wars nut, and the guys I play with picked our characters and developed our play styles around being in our specific group of four. I find it super boring alone, but together it's awesome. I played a LOT of Borderlands with a buddy of mine, and played a lot of Coop halo, too. Used to play Battlefront to DEATH with some guys on the original Xbox. Knew the name of all the command posts, pretty good tactical awareness of the maps, we were pretty awesome, and it was a TON of fun.
I play a pretty large amount of NHL 13, but it's all with my buddy, on the same team that we fantasy drafted/developed via trade etc. We've played 2 full seasons now, Every game, and it's to the point where we have a really good cycle and actual chemistry (we player lock, always, I play C he is RW) and so we set up a lot of creative passing plays, and some super crazy goals. I don't love the game alone but with a teammate it's a riot.
If anybody plays any games online now I'd be down to set up for a game here and there too. My gamertag is "Echo 4190", and I could (and would gladly be down to) play NHL 13, Halo 4, ME3 or Borderlands 2, as far as fairly current games are concerned.