I shoot with Sony equipment and picked up a Maxxum 7000 off of craigslist for cheap along with a 50mm. I was thinking though, the body is really not that great in my opinion in terms of ergonomics and also autofocus capability. What do you guys think about upgrading from the 7000 to a 7? It looks like ergonomics would be very similar to what the Sony A850 I have offers, and I have seen them for fairly cheap on ebay, KEH and other online sites. Worth the upgrade?