Kikkoman

Since my XP computer at work is memory constrained, turning off some services would be a good idea.

http://www.devotedgeek.com/the-ultimate-guide-to-tweaking-useless-windows-xp-services/

http://www.blackviper.com/WinXP/servicecfg.htm

Really tho, I think any of those will just be scratching at the margin, really I need to get SQLServer off my box.