Hi all, I have struggled with the hard drive on my iMac for a while now, it used to be that it would work after a fair few attempts, now it doesn't. I don't want to put my iMac on the scrapheap and was wondering if the following was possible: Substitute the internal hard drive for my Lacie external hard drive? I don't currently have the OS installed on my Lacie drive, how would I go about installing a fresh copy on there, is there an option to choose the destination drive when installing Mac OS X? Also, how much are replacement hard drives? Thanks.