I've been trying to get this working with a 2 drive setup on my mid 2010 i7. The biggest issue I'm having is that the windows 7/Linux distros won't boot from an external usb cd drive with the 2nd drive installed. This works flawlessly with just one HDD and the normal SD installed. refit is installed. The windows install gets stuck at "windows is loading files", it hangs while trying to load disk.sys. As for Linux, refit complains that apple's efi firmware does not well support legacy booting. Has anyone successfully booted win7/Linux from an external USB cd drive?