I currently have a Geforce 8600 GTS and im looking to upgrade to somthing better. I recently upgraded from 2 1440X900 19" dell monitors and got two 23" Acer 1920X1080's. The game i currently run EVE Online started getting some frameskip at the new higher resolution and had to lower the graphics settings when running one client as opposed to the 2-3 I normally run.
I really want a card that can hadle at least 2 clients on very good to max settings without SLI or Crossfire.
While the 5770 would be a significant improvement, question ya gotta ask before whipping out the credit card is "will it be enough ?" If your sticking with EVE, no worries, but at 1920 x 1200 resolution, the 5770 has a tough time in today's DX11 games with just one monitor.....here's a recent (Feb 25) comparison of some viable cards
Ignore the 275 score as it's obviously not in DX11 ....
The 5830 looks like a more viable candidate .... for today's games .... what you have to think about though is how long these cards have to last you ? If 2 years, then I'd grab a 5830 or 5850 .... if 3 or 4 years, then i don't think even those cards will get you thru XMas 2011