Hello people! my computer right NOW, is this: C2D E8400 + Xigmatek RS1283 Asus Rampage Formula X48 MSI 8800gt OC HeatPipe Version 2x1gb ST blue @ 1000Mhz X-fi Extreme Audio + Edifier R131 WD 320Gb 16mb IstarUSA 750W TC-750PD1 Samsung 226nw (in future will be replaced with a samsung T260 ) and im going to change my graphic card. which one of this graphic cards shouls i buy for playing all the games in 1920x1200 at highest graphic detail and if its possible, with mas AA and AF filtering ? BFG GTX280 1GB (US$ 540) Radeon HD 4870x2 2gb (US$ 680) Radeon HD 4870 (US$ 360) which sould i buy? which is better? PD: notice that i live in argentina, so thats the reason that the priced i listed above were very high, because my country has very high taxes for importing electronic things.