[stansdds]

Unless you are using really high resolutions, SLI or Cross Fire brings little to the table except extra expense, extra energy consumption, extra heat, and extra problems with drivers. Flight sims in general are far more CPU intensive.

My rig is an Intel E6850, 2GB RAM and a 8800GT OC under Windows XP Home and it smokes Il2 and MS Flight Sim 2004 at 1024x768 resolution.