I've heared gainward have had some questionable cards in the past. I do know that BFG are a good make to go for however. Good quality, at a reasonable price.
do not got a BFG, atleast a BFG7900GT they have had a lot of problems with capacitors coming off, ive had 2 myself and im waiting for another replacement, just type in "7900GT BFG capacitor" into google and youll see what i mean