Other than for Dial-A-Fix, are there any other good little utility apps that will tweak and repair Windows OS, correct other various system issues -- and possibly even scan for and resolve conflicts?

Not so much software, as sites where a lot of good software and tips can be obtained.

Kelly's Korner:

Bob Cerelli's Windows Page:

The Elder Geek On Windows XP:

Doug Knox: Windows Tweaks And Tips:

Thanks, Dennis, for the links. Looks like some great info! I've bookmarked all of them.