problem is if you have Vista already...you don't qualify for the upgrade offer. The only way to qualify is to buy a new copy of Vista then you can do the upgrade. What a crock.
W7 is great but Punkbuster doesn't yet work on it so will have to wait till it goes RTM. Once this happens and manufactureers start supporting it I will move the rest of my machines over to it.
Currently I have my HTPC on W7 but thats it. Wifes notebook has been downgraded to XP pro same as my Desktop. Wifes notebook originally came with Vista but it ran like a dog.
My machine has 8gb of ram Q6850 CPU and vista still runs like a dog.