Is there any compelling reason for me to shell out $90 to get copies of Office 2007 and Vista Business Edition (upgrade)? These are now available from my work's "Microsoft Campus Agreement" thingy. I don't particularly want to run Vista, but I suppose eventually there will be little choice. And I'm perfectly happy with Office 2003 and don't know what the design changes in 2007 amount to (I haven't ever seen it).