Maybe a little different answer than you're looking for....
But why not install VMware Workstation (free)?
Unless there's some specific reason,
now a days, me personally, I wouldn't do it any other way.
That is not what my client has asked me to do. They want a dual boot Windows/CentOS box.
sometimes clients don't know what is best for them. either they aren't aware of VMs or perhaps have a fear of the unknown. virtual machines work great for all but the most intensive work (hardware accelerated CUDA functions, multi-dimentional matrix calculations and games requiring DirectX10+ hardware acceleration).