The D70 is good i shot with ours and compared it to our Nikon Dx1 The color was OK the sharpness excellent but under strobe i had to turn down all my lights to minimum at F22 and even then the image was too dark. This is because of the 200 ASA minimum setting on the D70 which is far too high for studio work IMHO.
Its great value and outdoor shots are fantastic I shot in Argentina Thailand, Germany, Uk, Spain etc etc and never had an exposure problem outdoors.
If you do buy the D70 purchase the $20 remote its a handy gadget that is not advertised much but allows you to be away from the camera and to trip the shutter from about 20 feet away, ideal for POV shoots ?
Some of the shots in the models gallery on
http://www.fantasyforge.com where done with the D70