Having just done this in October, you get up to 42 bags per pallet, it will cost somewhere around $1700 and end up averaging $.55 / lb with freight. You can look at the spreadsheet I made to manage our orders to get some ideas. I had to get a truck with liftgate as I didn't have a dock and I bought more grain than anyone else, I couldn't transport it all in one trip. That added to the cost of freight, if you have access to a dock it will save quite a bit. Its really worth it, we'll be doing it again once the group starts running out of grain. Not to mention, how cool it is to have a huge a$$ pallet of grain in your garage.

I ordered from North Country Malt in NY, I think they have a distro in the midwest somewhere as well. Ignore the homebrewer pricing, call and talk to them about ordering a pallet to get the bulk pricing. They sell hops too, but in 44lb blocks for about $900 each. =P They also have additives and cleansers, etc, we got some star san.
- HomeBrewTalk Gallery
http://packetpimp.org/grainbuy.html
http://www.northcountrymalt.com/index.html