I do. I play on XBL and PSN. As of right now, my Xbox died (yay RROD), and I only have World at War for my PS3. I'd be willing to play someone though. Just add what's on my profile.
It's an addicting series, and I'm much more of a campaign lady than online play, but I have no dislike for it. MW2 is awesome with it's tactical nuke. That was fun.