A friend has been telling me that he has been trying to set-up his PC so that he could either boot into Vista or Linux. Now his big problem was that Vista doesn't have a boot.ini file. He thinks that he might have the answer in a piece of software that he has found though. The program is called VistaBootPRO and can be downloaded at
http://www.vistabootpro.org
Anyway he's going to let me know how he gets on later today. It would be nice if someone on here has already worked out how to dual boot with Vista though and post here with a description of how it was done.