I have ordered packages through a local dealer that gets them from hardeman's. Last year I bought 3 packages with a Russian/Italian hybrid - they did OK this year - not as good as a few years ago. I do have to say that this season was particularly dry, so that may have something to do with it. However, the NWC's I got from Tim at Honey Run Apiaries did quite well.
Unless you are a large, commercial producer - I would look for queens at Mid-sized breeders. VP Queens, Mike Palmer, Tim at Honey Run etc. I've heard a lot of good things about their stock.