Ok, I accidentally bought the OEM edition of Microsoft Vista. The warning labels all over the box have me way to nervous to even open it. I want it to be intact in case I have to sell it. Can I load it onto my iMac, which has parallel on it, without the OPK? I guess the second part of that question is if it can be done, how difficult will it be? I have a pretty good understanding of both PC's and Macs, but I am not at the advanced level of a real tech geek. I am only a school teacher tech geek.