On my SillyYaks Yahoo group, Naomi posted that her company, Better Batter (www.betterbatter.org) is now only charging $5 flat rate for shipping.
I love her flour, and after more than a year GF, I finally gave in and bought 45lbs earlier this year. I LOVE IT!
So, after the announcement of flat rate shipping, I order 100lbs in the bulk bags. I think they'll work perfectly with my 5 gallon buckets and mylar bags!