What would you do? Upgrade your camera or spend your money on a better lens? I have a Canon XSI and was looking at upgrading to a 7d but I also was looking at zoom 50-200 F2.8 IS. My hobby is shooting my dogs and dog sports (lure coursing) and nature and I can't swing both right now. I have had my XSI for quite a while, shortly after it came out.