I would like to see an option that allows customers to pick images for custom products such as collages, posters, cards, ect.

you mean pick multiple images right?  because right now you could offer cards from a single selected image...

Kevin Thompson:

you mean pick multiple images right?  because right now you could offer cards from a single selected image...

Yes I mean pick multiple images. I do offer as the products now but then I have to have the clients send me a separate email to pick images and add any text.

the multiple images options, for like collages or 3-image frames, etc...  has been requested and would be very nice...  something I'll be looking forward to someday as well.