[philzgr8]

Personally I have always used Powerquest Partition Magic for configuring dual boot systems and it has its own configurable bootloader. I'm sure there are other solutions and I'm not sure if it will support Vista yet but I quite like the way it works. Every time Microsoft has come up with a generational OS upgrade I have dual booted for the first few months to give M$ time to issue service packs and I've found that a pretty good way to learn the new OS. Once I'm happy I can just delete the old OS's partition, expand the new one into the unused space and disable the powerquest bootloader.