Could you edit the title of the thread when you update the version, it's easier to tell than to load the first comment and scroll through it. Also, if you're worried about restarting the system, you could try getting ESXi up and building an image for that and then connecting to the VM server and restart that. It's a bit more work, but it's not too hard.
I'm re-purposing a box this evening for testing this exact thing. ESXi Host, Two days time I'll be running two 4x pciE -> 8 1x pciE external 6950s, and if everything goes right this evening, I'll be assigning instances to GPUs from vSphere.
Have you accomplished this already? Anything in particular to be aware of?