Lately, I have been tossing around the idea of purchasing another DSLR camera body as either my back-up to my D70 or as my primary body. Considering I'm not a professional, I don't know whether this is a good or bad idea. A friend of mine and I are going to be shooting a couple weddings together within the next year (and hopefully get more work), and I guess I was thinking that if something goes wrong with my D70, I at least have another camera to fall back on. Now this isn't something that I'm going to purchase right away, because quite frankly I don't have the money right now. Plus, I would like to purchase the 70-200 VR down the road as well, which is another roadblock in my decision. As for my potential choices (and you all my chime in for other recommendations), I have been looking at the D100, D70, D70s, D50, Canon 20D. However, seeing as I have a decent collection of CF cards, I would still like to stick with a body that takes them. So with what you have all read above you, do you think I'm foolish to even consider purchasing another body given my situation? Or should I just save up for the 70-200 VR?