WSUS Offline Updater (Formally C'T Offline Updater)

A great place to get all your updates and service packs in one place. Simply run the updater, select which products you want updating and weather you require service packs, and it will go away and collect them all into one place.
You can easily create a CD with all the updates you require, saving hours of downloading.

Currently at V7.3 as of 25/1/2012

http://www.wsusoffline.net/