Hiding Mac Partition
Don't perform, but understand the basics of fstab files and hiding Mac Partitions provided by MacGeekery:
http://www.macgeekery.com/gspot/2005-12/hiding_partitions
For some reason, it seems like Apple Bootcamp doesn't use or assign a UUID for Windows XP (or it could be I am using NTFS rather than FAT32).
However, it can still be identified by LABEL in an fstab.
So, here is what I did:
(1) launched Windows XP > authenticated user > Start > My Computer
(2) renamed the Local Disk to WinXP
(3) shutdown Windows XP, launch Mac OS X and authenticate
(4) Finder > Go > Utilities > Terminal
(5) sudo > authenticate administrator
(6) emacs /etc/fstab (my fstab is blank)
(7) added the following line
LABEL=WinXP none ntfs ro,noauto
(8) save and exit (unfamiliar with emacs? save and exit: CTRL-X-S CTRL-X-C.... CTRL-X-S is "hold down CTRL, press X, press S, release CTRL")
(9) reboot Mac OS X and hopefully the volume labeled WinXP is no longer automounting.
I have no idea if "ntfs" is a valid token for fstab files, but I honestly have no need to mount this volume under Mac OS X.