Do you have a coffee grinder? I think you can use one to grind tapioca pearls or even the granulated stuff into tapioca flour. It might not come out quite as fine as buying the actual flour tho. I haven't tried it with tapioca, but I do use a coffee grinder to grind flax seed and almonds into meal. It works great.

As for bread, I just posted about an awesome bread recipe I found. Here's the link to my post:

http://neurotalk.psychcentral.com/sh...6447#post56447

I want to try this using buckwheat in place of the sorghum flour, but I haven't worked with either flour before.