Just a week after CyberPower introduced its own line of Dragon-based gaming PCs comes this clip from IBuyPower. The custom gaming machine maker has just announced two new Dragon-based systems, both of which include AMD’s latest Phenom II processors, the 790GX Crossfire chipset and ATI’s Radeon 4000 series graphics cards. The new machines go by Gamer HAF 91B and Gamer Fire, though most of the components are similar on each. The former, which is the lower-end machine, includes a Phenom II X4 920 CPU, a 500GB SATA