There are many cheaters multi and they are free to do this stuff. Here u have guy with aimbot, his nick is "Butapren"

http://www.youtube.com/watch?v=VrHPKcD9Sow&feature=player_embedded

And here is a video showing how this hack works

http://www.youtube.com/watch?v=p2vVMf_9HyY&feature=fvwkrel

Well... THAT was boring... next! The only time when hacking is interesting, is when you have a LAN Server up with anticheat, and like 60 people are trying to hack the game and beat the others with a better hack/advantage ingame ^^ did that 1 time with 5 buddies on CS1.5 ^^ Niiiiiiiiiiiiiiiice xD

The other guys using it on public servers? Dumb people who have a **** up sense of humour... -.-

It doesn't enough a very good suit? Why you need cheats?