i don't fully agree to this because this is not a photo/imaging site. instead just link your photobucket/multiply/picasa to your signature. there's already a members page where you can show your priced possession.
but i do suggest, to limit the resolution of photos (or to resize them) during upload because some photo post here consumes the entire screen and it doesnt look nice, others even quote the entire photopost with x-numbers of images in replying to forum.
this is just my opinion.