Just purchased a new 17" Unibody MBP and I need to load Windows on it for office work. The only software I'll need off the bat is Quickbooks Pro 2009 and Microsoft Office. I wont be doing any gaming and all of my media will be on OSX, along with Adobe Design Premium CS4 and other work related software that doesn't require me to use Windows (for my office anyways ). So, how much space would you recommend I partition? I don't want to run it too close incase I end up needing more, but I'd like to leave most all of my HD space for OSX.. (EDIT) Also, is it possible to add space to the partition down the road if I need it?