I have just been playing with image uploading so that I can answer a few questions and noted the following. An oversized image can be uploaded and it WILL be resized to the correct dimensions for the server. However this will fail for images over 20 megapixels to prevent the server being pushed into out of memory issues. The only pictures that will fail to upload are ones that when resized go over a maximum filesize limit. I will talk to Jim about the optimum setting for this limit. We have set the dimensions as big as we can to maintain image detail. However we did want to reduce the size somewhat to conserve storage space on the server.