Welcome Bruce, fellow Triangler here (Apex).
Looks like everyone has mentioned all my usual haunts. I would suggest going and visiting each one to see for yourself. It helps to price a few specific species across all the stores to get a sense for how each prices out. (Not sure about you, but I get so dazzled in hardwood stores that I completely loose all objectiveness.) Here's my preferences in order with comments:
1. North Carolina Woodworker -- There are a number of sawyers, shops, and serious craftsmen posting here with truly fabulous wood at phenomenal deals. You have to keep an eye on the postings and get to a shop crawl or lunch to meet the people that can connect you to the best stuff. It's ok to post requests in the Wanted section, too.
2. Klingspor -- Great prices, great selection, and they've recently re-arranged the store to hold quite a bit of inventory. Also great woodworking tools and supplies.
3. NC Hardwood -- Best prices, best selection, biggest inventory (actually a warehouse). Only problem is the 2 hour drive round trip to Gibsonville. I usually try to talk another North Carolina Woodworker member in to making the trip with me to split gas and have some conversation. But they also deliver in the Triangle for a flat fee of $35, you just can't pick through it yourself then.
4. craigslist -- Plenty of good deals to be had, but you have to be patient. I recently bought about 350 bd.ft. of maple for about $1/bd. foot! (<-- stealth gloat)
5. Woodcraft -- Small collection of premium quality wood and tools at retail prices, good if you just need a tiny bit of something exotic.
6. Wurth Lumber -- Good prices on a large inventory of sheet goods. No longer have much hardwood.
7. Capital City Lumber -- Good selection of high quality wood (and hardware) in a nice atmosphere. At retail prices plus, though.
8. Burke Brothers Hardware -- No hardwoods whatsoever, but easily the best selection of retail hardware I've seen. Thought I'd throw that in since I distracted myself with hardware on the previous entry which is only about a block away from this place.