Hi all, I'm sure this question has been asked and answered before but I couldn't find an answer after 30 mins of research on google. I have an 2011 i7 iMac with a 256gb primary drive plus 1TB internal. To my knowledge, windows 7 can only be installed on the primary drive? I'm looking to use win 7 on bootcamp plus parallel. Will only use it for work, to watch blu-ray and some basic music production software. Now a 256 gb ssd has a very expensive dollar to storage ratio, so I'm looking for an answer as to how much size should I allocate for the windows 7 partition without affecting mac OSX's performance. I have heard elsewhere that a 40 gb space for windows is sufficient, if not, what will the be optimal size? FYI, Im looking at installing the windows 7 home premium 64-bit edition.