i bought an OEM copy from my work a few days ago and havent had a problem, if you get a retail copy all you get is a pretty box and phone support which if you built your own computer you shouldn't need. Vista OEM Home Premium is about $159.99 CAN and go up to about $259 like my Ultimate OEM copy.
So far so good though on the vista Ultimate i bought and installed. screens below.
So far so good though on the vista Ultimate i bought and installed. screens below.