Having completed HL2, and just ordered HL2 episode 1, I decided to giveCS:S a go until episode 1 arrives, but because they sent me ep 1 without the piece of paper with the product key on it I couldn't install it, so I've played CS:S for a bit longer. It's a lot different from my other experiances of online FPSs, first of all, it's a lot harder, my first few games were basically me getting shot in the head about 30 seconds after the game started. But watching the pros and generally practicing meant that after about 5 games, I started to get my first kills in. Now I've got to grips with the weapon buying system and the bomb planting and defusingstuff I'm really starting to enjoy the game. And I only got called a N00b once, pretty good going I think...