I have been saying this for years and it is part of most of my digital programs as well. It is also the most common question we get from our clients, we cannot print them a full frame 8x10 from some of their images.
Read the recept post by Scott Kelby on this topic.
When Will We Finally Get Frames and Mats For Digital Camera Images?
The post also includes two places that are in line with the current times
and Craigs Frames