Hi Cynic,
With no change of Excel version you should actually be able to
reuse your toolbars .xlb file (carefully). It would be nice if you have
both machines for awhile but have no idea if you will have that
option. In any case no matter what you do the things you have
to do are the same as making backups that you can recover files
from or start over on a new machine after a disaster..
http://www.mvps.org/dmcritchie/excel/backup.htm
and I would suggest also looking over
http://www.mvps.org/dmcritchie/excel/toolbars.htm
and documenting your toolbar usage with Print Screen to
usually Ctrl+Print Screen and pasting to a Word document
and print that. And running the macro for documentation of you
menus at
http://www.mvps.org/dmcritchie/excel/barhopper.htm

HTH,
David McRitchie, Microsoft MVP - Excel [site changed Nov. 2001]
My Excel Pages: http://www.mvps.org/dmcritchie/excel/excel.htm
Search Page: http://www.mvps.org/dmcritchie/excel/search.htm