Does anyone know of a way to install Windows 7 onto an external drive and boot up from it? I have access to USB, Firewire, and eSATA, though the last one is via the 5th or 6th SATA controller in my Mac Pro which I'm not sure are bootable. Anyway, I've been hunting around and I've found tons of references to installing FROM a USB drive, but none on installing TO such a drive. Considering Windows Vista and Windows 7 are supposed to be modern, high-tech OSes I find it laughable that you can only seem to install it onto a specific internal drive or seemingly not at-all, compared to OS X which I've been able to install on just about anything. Rant aside, I'm hoping there's a guide somewhere as there was for XP, but I've had no luck at all finding it. If I want to boot into Windows then I need to be able to get it to work from an external drive, as my OS X installation boots from a software raid volume which Windows won't recognise, and which I can't partition in such a way that it would (not without dedicating a whole 750gb drive to Windows which is out of the question).