The wheels on the Giant are Soul C5.0s (http://www.bikesoul.com/2009/index.php?option=com_content&view=article&id=6&Itemid=16). I've been really happy with them. They're considerably lighter than any of the big brands 50mm deep carbon clinchers and they ride brilliantly, very stiff and responsive. They've also taken a bit of a beating from the potholed Kent lanes with no apparent damage and without going out of true.
congrats bmxed! ;)
i love your bikes!