I know the RC is going to last about a year but I was wondering this...If I want to continue using 7 would I have to buy a license key from M$, or can I get an OEM CD/KEY and just plug that in. I'm setting someone up with a new computer and was going to suggest using Windows 7, but don't wan't them having to pay $200 when it expires when they can just stick with the OS they had and not worry about it. Thanks.