I've got a Mid 2010 i5 15" with a Boot Camp partition running Win7 x64 used solely for games. However, I'm taking a statistics class now which needs a Windows-only Excel plugin (MegaStat) so I was forced to install Excel in my Boot Camp partition. Is there any way I can use Parallels with my Boot Camp partition without screwing anything up? Booting up into Windows every time I need to use MegaStat is a pain because everything else I need (notes, lectures, etc) are in the OS X partition. If not, are there any alternatives for me?