MSI's GeForce GTX 560 Twin Frozr II comes with MSI's own cooling solution, which does a great job at keeping the card cool. Even with heavy voltage increases, the temperatures never rose above 80°C. For maximum performance MSI has overclocked the card out of the box - at no price increase compared to the reference design.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips