ive gone from a 650 bike back up to a 700 bike so ive got some pretty new wheels for sale:

Zipp 404
less than 300 miles on them
tubular
the only funky thing is that the dust covers on the front wheel are loose but other than that the wheels are perfect.
$1000

HED3 trispokes
less than 150 miles on them
tubular
$1200