If I buy a MAC Book
 

can I dual boot it with XP OR 7?

as long as it's an intel chip set, yes.

http://www.simplehelp.net/2009/01/15...e-walkthrough/

Or you can just use like a "Virtual Windows" inside OSX: http://www.downloadsquad.com/2009/01...ws-7-on-a-mac/

You could also get a PC

Thanks guys.