Where can i find Digital SLR cameras cheap?

I'm looking for a DSLR, but they're so expensive if I were to order one directly from the retailer.So, does anyone know of any websites or stores I can look at for DSLRs? It's fine if they're used too, as long as everything works right.
I'm looking for a Canon or Nikon, probably one of the simpler, less expensive, models, like the Canon Eos Rebel T3 or the Nikon D3100 or D3000.

Amazon, Adorama, B&H, Calumet and so on, these are all the top online stores for cameras.

D3100 would be the best performer, then T3, then D3000.

Here's a DSLR Buying Guide - http://www.the-dslr-photographer.com/2009/11/which-dslr-to-buy/