Are the Norton Utilities better than the Windows system tools?

[Gozu Tashoya]

I've recently found an offer for Norton Systemworks 2001 for $15 (plus $4.50 or so shipping), and am tempted to pick it up. However, since I already have Norton Anti-Virus, all I'll be using it for is defragging and scanning my HD for potential problems. I might also use Ghost if that's included as I think it is.

However, I believe that Windows' disk defrag and scandisk are both made by Symantec anyway, so is there any real difference? If so, what are they? Thanks for any info.