So I am buying a new wheelset and my budget is $500 or lower. Will be for everyday use, training, racing, etc. My choices are:

Williams System 30s
PSIMET:
One set with White hubs 30mm rim (more expensive, over budget)
One set with Novatec hubs 30mm rim
BWW Blackset or the Mavic Open Pro w/ Ultegra
Easton EA70

Trying to decide which one.