Okay, well I just got though the crysis demo (twice), and well, it was a experience. I overclocked the 4850 but it kept crashing, but the heat was at like 65C. After awhile I set the 4850 to stock and messed with the graphic settings in crysis and then it ran fine after a few tries that ended with mass artifacting. The end result was a mix of medium and high settings. With a 1280x720 res.
Over all I'm a very happy man
.