just a thought but is counter strike made by ID games. if so they always release linux binaries for all their games
Nope, I wish. Counter-Strike is a mod of Half Life, which is made by Valve (and Valve ended up hiring the people who made mods like Counter-Strike and Day of Defeat). Valve's Half Life engine is a heavily modified Quake engine, which might be where you got the idea that Counter-Strike was made by iD. I wish that Valve would port their games to Linux or release the source code or something eventually, but they haven't yet. Cedega is good enough for now, but it would be much less trouble for Linux gamers. What Valve has done with Linux is release server binaries for it, but that is about it.
While there are no native Linux ports for Valve's games, you can get Linux binaries for all of the Doom games (including Doom 3) and many other games by iD or those based on their source code (Quake, Hexen, and Heretic come to mind). And while we are on the old school track, you can get Linux versions of Bungie's Marathon Trilogy, (which they have made open-source and freeware, so you can go download it somewhere off of Bungie's website). And you can also get Linux versions of America's Army, though Mac and Linux versions of America's Army come out a bit later than the Windows versions.