Upgrading 2x 8800 GTS, Need Help

[ranwitscissorz]

This is my system:

Asus M3N-HT Deluxe
AMD 2.6 ghz Phenom
Corsair XMS 4 GB DDR2 800 mhz
EVGA 8800 GTS 512mb x 2
Thermaltake 1200w

I recently changed my 27" monitor for 3 x 25" monitors and would like to take advantage of the new screen spanning technologies (Nvidia Surround/Eyefinity), but I haven't kept up with the models and their abilities in recent years. All 3 monitors are the same and run at 1920x1080.

Can anyone suggest a decent video card setup that would give me a good improvement in speed and give me the better spanning? I would like to only spend between $200-$500, but want to keep the purchase reasonable. My RAM is next on the table for an upgrade.

Thanks for your help.

 

[Mousemonkey]

If you don't want to mess around with DP adapters then a pair of GTX460's would be within budget and be able to be dropped straight in, you might need a faster CPU but that would then be the case with any of the newer cards.

 

[ranwitscissorz]

Would it be best to use the 768mb or the 1GB version?

 

[Mousemonkey]

The 1GB versions are the only ones that are really worth looking at, I don't know why they bothered doing two versions but there you go.

 

[ranwitscissorz]

Thanks for your help mousemonkey!

 

[Mousemonkey]

You're welcome.