A single 8800GTS will have an easier time with 1920 x 1200 than 2560 x 1600 since it only needs to push half the number of pixels.
I am still playing games on my 26" LCD monitor with a 1900XT @ 1920 x 1200 and I still find performance to be acceptable. However, your idea of acceptable performance may be more demanding than mine. The 8800GTS 512MB is more powerful than my card though; rough guess is probably 25% - 30% better performance if not more.
I am looking to purchase a SAMSUNG SyncMaster 305T Black 30" 6ms(GTG) Widescreen LCD Monitor. I would like to know if my video card (8800 gts 512mb) would be able to handle 2560 x 1600 resolution.
Not sure if your video card (8800 gts 512mb) would be able to handle 2560 x 1600 resolution. But i do have a SAMSUNG SyncMaster 305T Black 30" 6ms(GTG) Widescreen LCD Monitor. I'm planning to sell on eBay which there's only one on the used side and its for parts not working. The oe i have is used but in great working order. shoot me a offer . email@example.com That's my email