Least Privilege in XP
This week I started to follow what I preach and removed administrator privileges from my user account in my home computer. In fact I had to create a new account, as I was running XP with the Administrator account renamed (shame!!!). I had some problems on copying the old profile to the new account, but everything went fine. Until now nothing have caused my serious issues, and the "runas" feature, as well as Fast User Switching, is making the move as smooth as as it can be. I don't think it has been any more problematic than having to use sudo on Linux. Some NTFS permission tweaking solved most of the problems.
A good resource for solving issues when trying to run with reduced privileges is the Aaron Margosis blog. It has been helping me a lot.