I just got an e-mail from Sugarland Cakes in Chapel Hill that they are currently having a Winter Sale for cakes for 2011 weddings.
From Dec 1 to 31, round cakes 6/8/10 to feed 80 people are $159 + delivery and 6/9/12 to feed 100 people are $199 + delivery. There are only a few designs available at that price, but it still seemed pretty awesome.
If you didn't get the e-mail, pm me your address and I'll forward it to you. I didn't see anything about their sale on their website when I glanced at it.