What Operating System should I install in my computer?

What Operating System do I install to my computer?



Specs:



Intel E7500

2G 2x RAM

500G HDD 100 C: / 400 D

GT220 VGA



I played some games like Left 4 dead, call of duty, counter strike, medal of honor and some online games (RPG) level up games. what should I install, I have Windows & 64x but it seems its heavy and have some problem incountered. any suggestion?|||Windows 7 is so awesome

if you have linux you can't play all of those games|||There are many flavors of linux to try!

But all the cool kids are installing bsd http://ghostbsd.org/