The newest edition to Mac OS X titled Snow Leopard ($29), adds a whole slew of new features to the already award-winning software. It includes a faster more efficient finder, an all new version of Quick Time, quicker Time Machine backups, and takes up only 7 GB of storage. Snow Leopard is now 64-bit and uses more cores than ever before. Expect your mac to be running quicker, more efficient, and more fun than ever. Now available from Apple.