Buying Decision - Sigma SD15 vs Nikon and Canon

I must share my thought with you about my buying decisions. First I opted for the Sigma SD15. The most amazing aspect of the new Sigma SD15 DSLR camera is the Foveon X3 sensor, that really shines in terms of image sharpness and color production. I mean, wherever I look at Sigma SD15 sample images taken with the Sigma SD15, I am blown away with the sharpness and overall image quality of that