I recently switched to robocopy, a command-line utility from Microsoft that
can be used to copy/backup/sync folders. I've just put a link on my desktop
and double click on it to initiate the backup. It is really fast and can be
combined with the task scheduler if you want to automate syncs/backups.
It can be found on Microsoft NT4/W2k/XP Pro/2003 resource kit CDs. The 2003
Server resource kit can be downloaded from
http://go.microsoft.com/fwlink/?LinkId=4544. Earlier verisons can be found
on the internet (do a Google search).
Alternatively, xxcopy is a freeware alternative that appears to be at least
functionally equivalent.