I am no expert on wheels, but here is my 2 cents. For around $100 you can get a set of wheels if you want online. Bike Island has some offerings...

http://bikeisland.com/cgi-bin/BKTK_S...Wheelsets-Road

Vuelta Zerolite This is what I would get since the mountain wheelsets are rated so well if these do as well as those you can't go wrong for the price.

http://bikeisland.com/cgi-bin/BKTK_S...ls&ProdID=1450

Hopefully your drivetrain doesn't add up to a great deal of money.