I just set my friend's hP up w a 6850 xFx (I forget exact # :-/ or so and external power he's getting 130 stable using cgMiner in Slush's pool.  We tuned the GPU up to 140 or so but the whole thing crashed so we are just letting it chill a bit n not tweak intensity up, 140@ 13

What's better is that his cheap tv/monitor looks dope as hell w the GPU upgrade, depth and clarity and faster load times bc of the core bypassing its junk int.GPU haha : )