The main problem inherent to technologies like SLI is that you have specific profiles for each game; otherwise, only one of two graphics cards is used. NVIDIA has released the third iteration of its SLI Profile Update. This is compatible with Windows XP, Vista and 7 and need drivers 190.62. It adds support (or improves performance) of the following games:

• Borderlands
• Cloudy with a Chance of Meatballs
• G-Force
• FIFA Soccer 2010
• League of Legends: Clash of Fates
• NHL 2009
• Order of War
• Pro Evolution Soccer 2010
• Race One
• Star Trek: DAC
• Champions Online
• Dragon Age: Origins