Renaming....8800GT=9800GT...Laptop models too are rebadged GPUs of the desktop versionsnames (m280GTx=8800GTs 512mb) but well yeah I will be honest that I am an ATI fanboy, but Nvidia rocked..they own ATI's GFx since from benchmark to benchamrk you will see Nvidia's the king. but well yeah they are xD...so u cant handle the truth, but sorry for them.... ATI FTW xD(not offending any Nvidia fanboys there just stating my own opinion ^^)

CPU:Intel Q6600 2.4Ghz, GPU:ATI radeon 4890(Diamond) 1GB not oc'd, Mem: 2Gb OCz reaper DDR2(1066MHz) and a XFX 780i mobo.

Well, jumping from 4850 to 5770 isn't a good upgrade(or not ajump after all maybe a step difference in performance), but the 5850 is at the best of this time, and well if u cant get hands on 1 then might as well get another 4850 or a 4850x2(tri-fire setup) and well if ur mobo supports Crossfire, but if not i recommend waiting for 2 months or so.. cheers

CPU:Intel Q6600 2.4Ghz, GPU:ATI radeon 4890(Diamond) 1GB not oc'd, Mem: 2Gb OCz reaper DDR2(1066MHz) and a XFX 780i mobo.