Hi Peter,
Read your initial piece. But you state that you want to BU your Workbench of 600Mb?

?? What the hell do you store on your Workbench than? Sure 30Mb to 50 Mb should be more relevant figure? And than you can BU it to a ZIP of 100Mb! Or try a serial port connection with appropriate software on both sides to back it up to a PeeZee. By God, 600 Mb! You're shure your version ain't written by some dude at M$?
Come to think of it, you don't need to BU your entire partition. Instead, go only for a BU of your Startup-drawer, your Devs-Drawer and, very import, your Startup-sequence AND UserStartup both in S:. The rest is always on install-disks etc.
Cheers,
Tjitte