Where can i swap an SLR to a DSLR camera?

I have a Nikon F50 and i'm looking to swap or change it for a Digital SLR camera.anyone have any ideas?

A F50 with standard lens is worth about £40 to £100 depending upon its condition if you were to sell it to a private party. As a trade, it will have half that value, maybe even less

It may just be better to keep it around and buy the dSLR outright.

The price of a DSLR is tenfold the money you can get by selling your slr camera.