how about these......
http://www.bdopcycling.com/Wheels-FGSS.asp#FORCE
1741 gms is about as good as its going to get for that price ($200).
You could get down to 1350-1550 gms by building a custom wheelset, but its probably going to cost you a bit more than $300. You could probably do it for less than $400. To get the lightest wheelset for your money, you would need a pair of Kinlin rims (19, 27, or 30mm depths to choose from), some strongly double butted spokes (2.0-1.5-2.0, or 18-1.5-1.8) (Wheelsmith, DT, or Sapim all make spokes like this), a front road hub (with a bolt-on skewer if you ride track), and the rear track hub of your choice. Unless you weigh a ton, put 20-24 spokes in the front (1x) and 24-28 (2x) in the rear. The deeper rims will make for a stronger wheel, and are more aero. They also allow you to use fewer spokes, which increases aerodynamics, but the consequence is slightly more weight.
Also what tires are you riding.....you might be able to loose a good bit of weight where it counts the most by using a lighter tire.