I've run loads of setups over the years, dual 20" 4:3 for a while, then went to single 24" widescreen, then to 24" with 20" 4:3 side panel, then 24" wide and two 20" wide, to be honest I'd rank a single 24" way over dual 20", but obviously the ultimate is 24" with 2 supporting monitors. Whatever your settup it just works like one big desktop, and you can move freely between them all, and yeah you can set seperate wallpapers etc. Do any games support 2 screens? Because the only game i've ever found in my life that gave me the option to span screens was flight simulator.