Help me decide which wheels to get???

Hi All
I am in the market for some new wheels, budget is 1k USD. They will be used for racing both crit and road also some Fondo style rides. I am looking at clincher simply because of the ease of use pending flats in unsupported races/Rides.
So the final selection is as follows

http://www.boydcycling.com/50mm-carbon-clinchers/

http://williamscycling.com/sys38_clincher.html

http://www.bikesoul.com/2009/index.php?option=com_content&view=article&id=2&Itemid=10

http://www.wiggle.co.uk/campagnolo-shamal-ultra-mega-g3-clincher-wheelset/

http://www.farsports.cn/ViewProduct.aspx?id=685

So your thoughts please? Thanks Everyone remember be nice /img/vbsmilies/smilies/biggrin.gif