APPLE Mac OS X 10.6 Snow Leopard - £23.99 ( Instore Price £25.00 ) w/ Home Delivery At PCWorld

Some of the new features on the Mac OS X 10.6 Snow Leopard upgrade include built-in support for Microsoft Exchange and an all-new QuickTime Player. Best of all, your Mac will perform faster, easier and more reliable, making all operations from installation to sleep - and wake-time even better!

Take the Finder for example, the new version is dramatically faster than before, and Time Machine backups are up to 80% faster, Macs wake from sleep twice as quickly, and even installing the operating system is up to 50% quicker. Mac OS X 10.6 Snow Leopard also takes up less space on your hard drive, freeing up to 7 GB of storage space for storing more data.

Also, Mac OS X 10.6 Snow Leopard includes key technologies that make the most of the power of modern Mac hardware. Grand Central Dispatch co ordinates the use of multi-core processors to optimises to the max the strength of modern Intel processors, while OpenCL releases the awesome number-crunching power of modern graphics processors. The result is remarkable performance improvements for your most demanding programs.