Are there any lower-priced Digital SLR Cameras with the ability to change lenses?

In example, to change over the stock lens to a Telephoto, or Colored lenses.
I'm looking to purchase a new camera and am not sure what to save for, a Camera under $500-$600 would be ideal.

Thanks!

The closest you might find is a used or refurbished Canon Digital Rebel EOS 300D. Many people went to the 350XT and left the 300D. So there may be some of those around. The 350XT is about $700 for the back.

I found a 300D with an 18-55mm Lens refurb for under $600.

Myself? I would go for the 350XT but that is just me.

No. (IF there are, they are of poor quality).

Maybe.

At this point in time since they're new, youre better off finding a unicorn at the end of a rainbow... II would think you might get lucky sometime immediately after Christmas, digital SLRs might be a big hit this holiday season, if you can hold off that long