Though not an LBE or fanny pack, the Molly Mac Pack looks to be an interesting option, especially to those that prefer military gear and already have an investment in mollie gear.

http://www.mollymacpack.com/index.html

As their website says,

"Simple. Strong. Lightweight. Modular.
The nearly indestructible Molly Mac Pack carries stuff sacks, MOLLE pouches, trail maintenance tools, or field dressed deer. It's a day pack, a three day pack, or a coast to coast pack. You configure it to fit your needs."

It's basically a back board with mollie compatable straps where you can attach or strap stuff sacks in whatever configuration meets your needs.