We had a blackout last night. I had my PC authoring a DVD while I slept, SWMBO was still up and draining our meagre funds on eBay, the HTPC was running and WHS was, naturally, on. Then the power went out.
I turned all the PCs off so that any spikes when the power restored wouldn't blow anything and went back to sleep. This morning I fired everything up again and SHMBO's PC wouldn't boot.

It got to the Windows XP blue running lights thing then rebooted itself in a loop.
Put in the PC restore disk from WHS, restored the system partition from the previous nights backup and all was well within 30 minutes.

(Well, 12 hours and 30 minutes as I had to get home from work first.)
Anyway WHS has saved the day. WAF is high and all is well with the world.
Thank you Mr Gates.
