The American Printing House for the Blind, http://www.aph.org/, is a great resource for "adapted educational" products. And not just in Braille but also large-print, audio, tactile, software, etc.
Their online catalog includes products to recommend to your school.
I'm not affiliated with them, but I do have dear friends that work there. APH is a non-profit (so they're not in it for the money).
I'm not affiliated with them, but I do have dear friends that work there. APH is a non-profit (so they're not in it for the money).