This is just a general inquiry question, so I really just want some personal and professional opinions. I've been planning on buying a Canon7d for a while now. I read all the articles and have worked with some of the footage and I'm pretty sold on the camera. Here is where I am at. I'm wanting a DSLR (Canon7d..???) that is versatile (good still camera, good video camera) that won't break the bank (read: Canon 1d mark iv). Since its my first venture into DSLR I don't want to drop a ton of money on the body, but maybe in the future upgrade to a better DSLR(body). But I want to start off on the right foot with the lenses. So my questions would be be if I go with the Canon7d, where should I start on GOOD (not necessarily the BEST...price can matter) lenses that I can take with me to future DLSR bodies? I was thinking of starting with some type of fixed 50mm. Also I understand since the 7d is not a full frame but a cropped sensor so there is a 1.6x crop with the lenses. Thanks for any advice you can give.