I run good ol' XP, and I like it... because you can logon as a regular user, which is more secure for browsing the Internet. Plus, with NTFS, you can have multiple users w/ protected files and shares, which are ultimately accessible to the Administrators.
The only thing I've learned that you DON'T DO is make the windows directory Read-only, beings that i figured that the OS could still access its own files... but it makes it QUITE secure.
XP also seems to use bandwith much better than when I ran 98. Plus, being able to hibernate is always a big plus.
A+ Core Hardware, Software Certified (May 13 2005)
the new beast...
AMD Athlon XP 3200+ Barton running at 2.16 Ghz.
GeForce MX 4000 (mainly takes the load off the main system)
Creative Labs Audigy 24-bit sound.
Some Case from tigerdirect
512 MB Ultra DDR RAM.
80GB Seagate HDD
LiteOn CD-RW / DVD ROM drive.
currently looking at a litescribe drive at staples, due to its ability to label the CD shortly after being burned.