Digital BW, The Print

I hope this is not too OT, but what print sizes do you use? US letter 
size, 8.5in x 11in is fairly close to the ratio of my Canon 10D which 
is fine, but the resulting format look to retanglular for my taste. 
What would you recommend? I have a large roll of Photo Rag to cut up. 
It's 36in wide by 38ft long. Should I be using the standard 8 x 10 
format? It looks ok, but I have to crop a lot to get to this ratio.

Sierra Gold