Ugh!!! Scratch that... I found the product key. I'd feel stupid about it except that the PK label had fallen off into the bottom of the plastic container it all comes in. I'd have also sworn that it filled in the product key automatically the last time I did the install. Maybe it was 2k5 that did that.

Anyway, thanks for coming to the rescue. The show stopper was the missing PK label and a really bad memory.