Just got a computer capable of gaming, any recommendations?

I just recieved my new iBUYPOWER from newegg today and was wondering if you all could recommend me some games! There's probably not a genre that I'm not a fan of, I love gaming as a whole. ALSO. I was wondering which version of Counter Strike I need to download?

Processor AMD FX-4100 3.6GHz

Counterstrike Source is what you are looking for. It is the latest counterstrike available. Some games I recommend are TF2, Tribes Ascend, Skyrim, Witcher 2, and definately Diablo 3 when it comes out on May 15.

You know the drill. Download Crysis demo (or if you have the game..), max it out and run the benchmark. Now you can either cheer in triumpth if you don't witness a slideshow, or you can sob in dissapointment, realizing that your PC isn't that great.

Aside from that, my favorite things to do are.. Run Quake 3 and see how many thousands of FPS I can get.. Try editing/encoding HD videos.. Overclock and run stress tests.. If you have over 4gb RAM, get a virtual RAM drive program and use the remaining memory as a RAM drive- it's fun installing an older game onto that drive and loading it up in a seconds.. Try out all my old games and see how they run, especially the steam ones... Definitely give GTA4 a try.. etc. Metro's a b*tch on the hardware too.