FYI .. for services configuration information, I used to use black vipers web site, but his stuff is gone. Major Geeks reproduced most of it here:

http://majorgeeks.com/page.php?id=12

I don't use his suggestions verbatim, but more as a guide. The information is good, but you have to decide which suggestions you want to follow and which you don't. Each service is clickable, so you can read more about it and then decide if you want it or not. One thing you might want to consider is keeping the system restore service around, and taking a restore point before messing with any of this stuff.

-David