Need a good Vista on a Mac guide

A listener to the podcasts very kindly sent me a copy of Windows Vista Ultimate, and I am wanting to dual-boot it on my Mac. I already have XP running in a second partition, and I know that there are plenty of folks running Vista on their macs, both in parallels and BootCamp, but I am having a hard time finding the best guide out there. Anyone know a good link for me to get started? You can comment here or send me an email if you have any good ideas. Thanks!

UPDATE: Just so everyone knows, I am no dummy…I know how to mess about with an OS, and I am not using Vista as my main os or anything.