It's possible, but I can tell you right now it isn't what you want to do, it .. really.. isn't what you want to do, not only does it require you to understand how systems to work, but it requires a fair amount of going through a lot of files and changing stuff that you should NEVER change.
I came extremely close to losing all of my photographs and all of my music ... actually I came close to losing everything, I was doing a standard cleanup under windows and was being an idiot and wasn't paying attention to something unusual saying that it could delete 480ish GB of space (on a 160gb hard drive), i let it go through, wanted to visit one more website but closed out of firefox, noticed everything from my start menu was missing, something was fishy, tried to run firefox... error.. firefox isn't there, EVERYTHING on my harddrive that was not running at the time was deleted.
The one fortunate thing at the time was that my hard drive was indeed partitioned, thus it allowed me to install vista after some tooling around on the second partition and save all of my photographs which is what all I cared about at the time.
Even worse for me I did it moments before I was leaving for home.. it was a very bad trip home to say the least.
I can promise you, getting an apple and using bootcamp is the way to go for now, otherwise you risk losing it all.. easily.
it isn't worth paying that ultimate price of losing everything, my life is in this computer, and it was shattered when that happened, thank god for Piriform's Recuva which saved my life (for the most part)
Sorry for the long post, but not only is it technically illegal.. it isn't worth it.