I'm finally on Windows 7. Installed it today with my new built rig.
My PC died the other week with a big bang and lots of sparks (literally, they came out the back)... well it lasted a good 6 years and was still able to play Fallout 3 at 1920x1200 with high res textures (albeit some lacking in shadow detail and reflections).
And thankfully my harddrives survived, yay!