I currently own a Canon 20D. It was handed down to me a couple of years ago and have been using it with the kit lens and a sigma 70-300 f4/5.8. Both I know are not great lenses . I know I need better glass. Especially shooting the kids sports, general shots etc. I also want to have the ability to shoot in low light situations without the flash (Thus fast lenses). I used to just shoot everything on auto and have now been playing around with RAW and trying to learn the various settings, etc. Thus, I am trying to get more into photography as a hobby. While I know I need some lenses (Still figuring out which way to go on that) I wasn't sure if I would get more out of an updated body or what I would get out of a newer body. Not sure how the 20D compares to the 50D and what I would gain by going that route. Or is this even worth it. Or if a new body is the way to go, is there a better option?