Having used the Olympus E-P1 for the last couple week, being so impressed with its image quality and ease of use, plus having already decided to purchase the 12-60mm f2.8-3.5 Olympus lens with the adapter for it. I'v been thinking that perhaps I should get the E3 now to replace my current Canon 50D and its 24-70 f2.8 L lens which I have been mostly using since the purchase of my E-P1. This way I can interchange the lenses and not have to duplicate lenses of the same focal length. I have also been reading some good things about Olympus that I was unaware of for example there build quality and quality of there glass is very good. What are your thoughts on the E3 with the 12-60mm lens vs Canon 50d with the 24-70 L lens, will I be happy with the change over, Build quality and is paramount to me obviously with ease of use and a good selection of lenses and quality images. Are the quality of pics coming from the Canon going to be better then the E3 with the above lens setup. What are your thought on my reasoning, keeping in mind that I have not spent a huge amount on Canon gear yet and will most likely recover 2 thirds of it. I mostly enjoy photographing architecture and nature and am getting into low light photography. Thanks for taking the time to read and comment.