I use a 20" Samsung SyncMaster 206bw display with a native resolution of 1680x1050. Have a Corsair CMPSU-750TX 750W ATX Power Supply with 4 x 6+2-Pin power connectors, thinking someday I might be able to configure 2 way or even 3 way SLI. But for now I can only save to afford just one good video card to replace what I have now. Thanks for the taking the time to share your knowledge and opinions.
How much do you have available to spend on the GPU? The 6850/6870 would get you good performance for under $180.