I recently sold my old 450D with a view to upgrade to a new DSLR. I was thinking of buying 550D before. But since the 600D is out now, I am unable to decide whether I should stick to 550D or buy a pricier 600D. I would like to hear from those who have used and compared these cameras. Since the 600D is a relatively new camera, I haven't been able to find much reviews on it.