I just upgraded from a 20D, and the speed just blows the 20D out of the way!! Image quality runs about the same for both cameras since they're both 8.2MP, but how the camera gets you those images is simply amazing. Fastest shutter out there, low noise, consistent color, spot metering, multiple spot metering, weather sealing, the list goes on and on!! This camera demands the best glass, but you won't be sorry.If your serious about photography in any field, this camera won't disappoint!! A bit pricey, but believe me, it's worth every penny!!!!See some of my work at (...)