Today SP2 for Server 2008 was released which has Vista SP2 integrated in the same file. My laptop is running x64 Server 2008 with HyperV and the SP2 (577mb) installation took about 45 minutes to install and a reboot. Since my laptop is normally up to date, I don’t know if this would have any difference on the installation time.
While going through the readme notes about SP2 for Server 2008 (http://technet.microsoft.com/en-us/library/dd335036(WS.10).aspx), I stumbled on a great little tool called Service Pack Cleanup Tool. First off, be careful running this. As shown in PIC 1, the prompt does state if you want to remove any previous service packs, you won’t be able to. After running this tool which took about 10 minutes. I was able to free up 2.9gb of space and now I’m not reverting to a previous service pack.
To download SP2 go to: