counterstrike is free. all you need is a half-life cdkey. halflife isnt that expensive, you can get it for dirt cheap on ebay. then all you have to do is download steam (
www.steampowered.com) and register your half-life key and start playing
in fact...
http://cgi.ebay.com/ws/eBayISAPI.dll...134373287&rd=1
if you buy that you wont get the cd you will just get the key but thats all you need for cs anyway. you dont even need to install half-life you just need a key