I have the whole series. Half life 1, half life 2, counter strike source, and cs 1.7 or what ever it is. I can send you all the sounds you need via msn or pm if you'd like.
The only thing I can't give you is the custom server sounds. Like: "Head Shot!" In that really cool voice whenever you... well.. blow someones head off.
Edit: Oh shoot i realize that this thread is from early november.... Please forgive me. I'm still half asleep.