Best way to install Win 7; Clean, or XP to 7 upgrade?

[Grail]

Thanks daviddoran, that gives me some hope. I too wish the upgrade simply asked for an older Key. Those I have in hand. I would be more than willing to enter them. Still, I might need a moment to let my head wrap around what you are suggesting. Never heard of that one.

How about this idea though, can I make a system image using Win 7 on my platter drive and place that system image of a licensed Win 7 onto my SSD then just swap out the Mechanical drive and boot from the system image? Or is that image only good if used as some sort of restore, but incapable of being used as a functional OS?

Signed,

Inching toward Multi-Boxing

p.s. if I do what you are suggesting daviddoran, any idea if it will be recognized as a licensed copy? Does this take care of the 'verification'? Will I still be entering in the key from inside the Upgrade box? Or do I run some risk of running up a red flag one day? Like when they collect non-personal system information.