It all depends what hardware you have in your pc or some laptops can run it. It was about a year ago when I set it up so I forgot how I did it.
I remember downloading loads of boot discs from torrents and found one I could install on a spare external hd.
at the mo I have 2 500gig drives in my pc on for mac and the other for win 7
Insanely mac is great forum to start with and also mentioned the hackintosh
I really only did it as a prove of concept but dont use it that much now.
Coley