It's a shame the search isn't working...
There have been a few threads on this subject... As someone who suffered the blue screen of death... I'd say.. It's your risk. I had to buy a new hd the next day.
A couple of major problems with SP2 are.. Nero 6 and Pinnacle 9 don't work amongst a long list of programmes this download screws up.. There is a page at Microcrap listing the programmes affected... Here's the link:
http://support.microsoft.com/?id=884130
If you decide to go for it... Good luck but 30% of downloads do screw up a pc
