I second the comment on jack, CL listings in rolesville. He has a web site sawforyou.com. I have purchased 8/4 and 5/4 maple from jack and it was very good quality. He has better prices than the "retail" establishments and good quality. I purchased about 100 bf and all of the lumber was useable, dry and very stable.
I too search for a bargin but I have learned from cheap wood, it takes a lot more work to prep poor quality material and I really do not enjoy the repetition of surfacing lumber in which 20-30% contains knots and major imperfections that leads to significant waste. I think some of the lumber I have purchased at low cost is more expensive than if I paid retail in the first place after I include my time and the waste.