Borderlands..

I'm a level 20 Hunter. Haven't bought the game. Playing over Hamachi with a friend. I'd say it would be a fairly good investment though if you have money. There's stuff you can do single player but this game really shines as co-op; there's a fair bit of co-op specific content I believe, and it's loads more fun. However, I do believe there are many ways to abuse the game in PC Multiplayer so be aware of that issue.

We just finished that quest too, I think. Sledge, was it? My Sniper Rifle is only 65 Damage D= I use it for the 2.4x Scope and 3x Fire though, mainly. Does really well for that.

Yeah, 2 person is nice, but 4 people is when all hell breaks loose. Especially since the monsters are significantly harder when its a full party. I personally got it over Steam, as a prepurchase 4 pack so it was only 34$ or so per person. Even now it'd only be 37$ as compared to 60$ for the console, if we're talking about the 4 pack deal.