*disappointment* wish this thread hadn't died.... looking for best source for bulk grains, seems like midwest and all those that claim flat rate shipping don't include sacks of grain on that.
Unless you live within driving distance of a major online HBS, the cost to ship grains is prohibitive.
Try your local HBS. A lot of times they run specials on grain by the bag.
Also ask at your local micro-brewery (if you have one). I've been able to piggy-back on their grain buys and get base grains on the cheap.
Also check these forums for Grain-Buys near you. I've been able to get some good prices on bulk grain by that means.
Good luck!