It is time for me to part with my beloved Sigma SD9 . While it is an exceptional camera, it simply starts to show its age, and the body upgrade options are nonexistent as of now. Thus I am starting to look at the logical upgrade path - i.e. to a Canon or to Nikon system. I am considering either a 20D, 30D, D70, or a D200 body, and a fast normal (50 f1.4), a wide angle (20 or 24mm), and a long telephoto zoom (70-200 f2.8, possibly stabilized, if I will be able to afford it). I am going to start with the body and the normal lens, and get everything else later on. So which body/system would you go with, and why? I have browsed the bodies in a local shop, and left confused. I was left with an impression that Canon cameras require giong in the menus to change a lot of creative parameters (yuck), whereas the Nikons had more of a film-SLR feel to them. On the other hand, most Canon lenses, including the 50/f1.4 seem to use USM, while Nikons seem not to have it in the lenses I am specifically interested in... What to choose?