I think you're the first!
I'm running Windows Vista Business 64-bit under Boot Camp and Windows XP Professional 32-bit under VMware Fusion. Lots of people on these forums run one or more concurrent installations of Windows on their machines without any issues thanks to mature virtualization products and mature Boot Camp drivers.
You should be alright using Virtualization then. Virtualbox is free if you go down that road.
Bootcamp is very good, but it does require a restart everytime you want to use it.
how is the performance with these?
how is the performance with these?