Hey guys, I've spent the last couple days researching online and I can't find any current info on this (2007 was the most recent I could find). Here's the deal... I ordered a new 21.5" iMac a week ago (anxiously awaiting its arrival). For some of the programs and things I use for school, and for my SCT software, I'll need to have windows on it as well. I ordered VMware fusion 5 and windows 7. I know that running windows on a Mac is exactly the same as running it on a PC as far as vulnerability of the windows OS to viruses is concerned. So what I'd like to do is install VMware and windows 7 on an external HDD and run it completely isolated from the Mac's internal HDD. That way if something catastrophic happens and that HDD becomes corrupt it's not that big of a deal. Is this possible? If it is, would it be infuriatingly slow trying to run it from a USB drive? (I don't think VMware supports FireWire). Any input is greatly appreciated.