Play a game on the ABS Ultimate M6 ($3,799 direct, as tested), and you'll not only feel the roar coming from the Logitech Z-680 5.1 speakers, you'll see the noise meter on the front of the silver case pumping right along. The external visual flashiness pretty much ends there, but inside the M6 is AMD's new Athlon 64 FX-55, surrounded by components that make for notable gaming value.