Just a heads up really - if your looking to buy a Mac related product, wait until (coming) Friday as Apple will have a deal on (as done in the previous 5 years).
In previous years, they've knocked off prices from their Mac range and iPods.
This 'sale' is a one day offer - Friday 28th November 2008. Available online and offline. If you buy online, you can also take advantage of Quidco ;)
EDIT: This offer is a global offer (yes, includes UK)
EDIT 2: Quidco are offering 5% for Apple today only (FRIDAY 28th Nov 08)