I needed to add a couple more vendors:
Spartan Armor Systems: Their stuff is in stock, ships free and fast, and is really good. If you have been waiting to get AR500 style steel body armor, check them out.
T.Rex Arms: This has been an interesting company to watch over the last couple of years. The owner is young, hungry, passionate, and creative. They have more than just holsters, check out the nylon gear that they sell as well.