Here in the Willamette Valley of Oregon, we have "United Grocers" or "Cash and Carry"... Basically a restaurant supply that also sells to the public. Last week my local one had Briskets $2.28/lb for Select, and $2.18/lb for Choice. The Choice ones were quite large, which I am sure is partly why they were priced so well.
They also had good prices on Pork, I picked up a boneless shoulder butt 2 pack for $1.62/lb, which weighed in at 16.5 pounds. I did pulled pork with it at a weekend youth campout, and it turned out great... pleased with the quality of the meat.
If any of you have these stores I would definitely give them a try. I also get my charcoal there, 40 lb bags of Lazarri Mesquite hardwood lump for $13.95.