Nvidia just released their latest WHQL driver, which comes packed with performance improvements, enhanced ambient occlusion support, and SLI profiles.
The 295.73 driver can boost performance in Skyrim by up to 40%, and the ambient occlusion first added in their 290.36 beta driver has been improved to increase the graphical fidelity of shadows while limiting the impact on the overall performance. Additionally, ambient occlusion support is added for Diablo III, and SLI performance in Mass Effect III is boosted and now scales up to 90% in SLI (not that you'll need it).
Other highlights of the R295 driver include new 3D Vision and SLI profiles for over 50 titles and new PhysX software for titles such as Alice: Madness Returns and Batman: Arkham City.
Hit the source for the full details and download.