oneeyeddog
6850 is all you ever need IMO.
There are several 6850 on the market at around 100 bucks, maybe 120. I got 6850 from ASUS and I never saw it chug once.
http://www.gpureview.com/show_cards.php?card1=636&card2=678
^6850 vs 7850.
They both pack very similar gear [look at shader processors, etc.] but 7850 has superior architecture. Which shows on the results, but not by much... Meanwhile for the price of an average 7850 one can probably get 2 6850 which WILL rip a 7850 a new ... well you know lol.
So yeah, I am by no means end all be all on this question[overclock.net has many many FAR more knowledgeable gents and gals than me], but I'd really go for 6850. Maybe 6870 if you got spare cash. Go on ebay and look for higher end 6xxx series. for 200 bucks you can probably score 6950 which is a beast.
*EDITED*
I found several 6950s on ebay all seem in very good condition and with money back, so yeah. If you got cash, get 6950. Its better than 7850 for less money
http://www.gpureview.com/show_cards.php?card1=678&card2=639Masztalja
N clue on the sticks = \
Edited by _Red_Dog_ - 11/12/12 at 10:46pm