Man, I think you belong on the Weight Weenie Forum.
http://weightweenies.starbike.com/forum/viewforum.php?f=3
You've gotta get off this thing about wheel weight, coz it's BS. A few hundred grams (or even much more) is nothing across two ~63.3cm rims, two hubs, and a bunch of spokes.
I once went from a pair of Open Pros to a pair of DT RR1.2s, and the DTs felt as though "spun up quicker", possibly coz they're a bit stiffer, even though the DT rims are ~170g heavier each, ALL at the rim! Most light wheels cut weight from the hubs and spokes, so, even if 'spinning up' was true, less weight on hubs and spokes won't make any difference.
Do yourself a favour: get something a bit heavier, coz you'll save a heap of money, then laugh at your buddies when their uber-light and expensive bling wheels start popping spokes on your training ride.