Need Advice on what GPU to buy

[lazaro911]

Im upgrading a Gt430 Graphics card that i have and im just confused to hell as what to buy.
To begin with my Resolution is 1440x900
System specs
Amd phen 955
500d earthwatts antec
785gt msi mobo

The mobo allows CF

Should i get the Sapphire Radeon 6850 or a EVGA GTX460?

is Sapphire a reliable company like EVGA?

Ive never bought AMD graphics so i dont which are the trusted companies. i know that hd5770 is good enough for my res but i want one of those two aforementioned cards so i can play bf3.

 

[caseycole645]

i would go with a xfx 6850 or the msi cyclone 6850

 

[pro-gamer]

gtx 460 is slightly faster than 6850

 

[johnners2981]

I'd go with the 6850 or maybe even get a 6870 which will let you upgrade your monitor to 1080p later on and yes sapphire is a very good brand