Just about the time that you were going to make up your mind between all those other IBuyPower rigs announced this month comes this: yet another one added to the mix. The Gamer Fire 600 is a gamer-centric PC with loads of horsepower and a case that’s just as menacing. Thankfully, the rig is of the “bargain” type, with an easy-to-swallow price tag of $799. Based on AMD’s new Socket AM3 platform, the Gamer Fire 600 is loaded with the Phenom II X4 810 quad-core processor, Gigabyte’s GA-MA790XT-UD4P AMD 790X CrossFire