Hed CX tubular front wheel. 65mm deep toroidal structural carbon wheel with aluminum rim. Hub turns smooooth.
All the old tunnel data on this wheel says it's fast. In fact, Steve Hed himself told me that they designed this wheel with the intent of meeting the "Pepsi challenge" (offering cash) at that time by DuPont/Specialized for anyone to try to "beat" the TriSpoke in the tunnel. Specialized never took them up on it :-)
I bought this last year with the thought of swapping a PT hub into it and using it as a rear. A subsequent other PM acquisition made that plan moot ;-)
$200 plus shipping.
http://bikeblather.blogspot.com/