This probably seems a bit odd but I'm trying to figure out whether it would be interesting to get my dad a new SLR for his upcoming birthday. He has used and EOS A2E for many years now and has some very high quality lenses with it. Both the camera and the lenses are sitting collecting dust because he hasn't made the move to digital for his SLR shooting yet. So yeah, it begs the question what's best. Ignoring the price difference for now, what does the top of the line EOS 1D Mk III have over the EOS 5D? What would be the better buy for, what used to be, an avid photographer? Also would all of the lenses used on the old EOS A2E still work with the EOS 5D or 1D? I also get the impression that the EOS 5D has been around for a while (it still uses Canon's older Digic II processor), does that make it a bad choice? Thanks for the help!