I see, nothing like being prepared.  Note that I have never attempted to
uninstall XP (see below).

Whether you should upgrade to XP rather depends on a number of factors
including a) any problems you are having at the moment (which I take to be
none), b) whether your hardware will support XP, c) whether you have
applications that require XP and d) whether there are features in XP you
cannot do without.  Depending on the age of your hardware and when you
think you might next be purchasing a new computer it might be sensible to
put off upgrading at this time and sit it out running Win Me until you
next change your PC.

For myself I have been running XP for nearly five years, initially in beta
and then on all bar one PC here since it was launched in 2001.  I like PC
and use and need many of its features.  I have software that will only run
on NT based systems (Win2K or XP) and need the large disk support that was
introduced in XP SP1 (I have 1 x 80GB and 3 x 200GB disks on this box and
also 4 disks including 2 x 160GB drives on my second box).  Since I do a
fair amount of video work I also need the ability to work with large files
(10GB plus) so an XP type system is the only way to go.  Nevertheless I
have one older box here that only runs Win Me and won't be upgrading it as
it does what it needs to do without problems so will run Win Me until it
either dies or gets given away.  I have no problems with XP but appreciate
that each user is different.