I feel you man.
Windows 7 is stable, I will miss time machine, finder etc
But for a workstation, when doing edit on n number of screens, its the software that matters.
After they f***ed up with FCPX, people started shifting their software choices (I have both Avid Symphony 6 and Adobe CS6 MC, both of these work on windows 7) Its just made the transition easier.
My MP 09 is getting all clogged with 5K native edits and finishing. :-(