DiRT 3 was only released about a month ago but has received much praise from gamers and reviewers across the globe. It is the latest iteration of the Colin McRae Rally series, despite Codemasters dropping the Colin McRae branding. It supports DirectX 11 which enhances detail and brings a number of other visual enhancements to the gaming experience.
Dirt 3 runs great with this system and high end Nvidia graphics card.