The page that loads up for me shows on top gt 210/220s. Which are not very good and are the cards that replaced the 9500 which replaced the 8500........ They are 3 years old with a new name and still shit DDR2 ram......
The second cards on the list are ati lower end cards.... They do not even require a 6pin power connector, they are gddr3.... If your going to get ati, you must get gddr5 or its a waste.....
Now that I am thinking about it i know your motherboard is SLI compatable, but is it crossfire compatible, if not then you cannot go the ati route. make sure of that before you buy two ati cards.
The bottom cards are the mid grade ati cards gddr5 good clock speeds saphire is one of the better brands for ati cards as far as I know.
I have always bought EVGA but they are Nvidia only, Another good brand nvidia card is BFG Tech. Both American companies, both good customer service, both usually have lifetime warranties with their cards, evga mostly double lifetime.
I have never owned an ati card and would not know the good brands to buy.
crossfiring 2 5770s will cost you about $380 USD For about $430 you could get one single 5870....... Or a 5850 for about $350. What is better? Not a clue
I know you running duel 9500gts dddr2 ram........
Pretty much any single card 1gb version with ddr3 will outperform your currents.
Whatever tickles your pickle, just make sure you get ddr3 or ddr5 ram, 1gb cards. Look at the clocks speeds of the cards you buy.