http://www.ucc.uconn.edu/~jas95013/index3.html
Prices are as follows and he claims he'll cut custom sizes.
4X5,$12;5x7, $18; 8x10, $26; 11x14, $40
For my money I'm saving up to buy printing frames from Bostick and Sullivan, they appear to have the most useable design I've seen.