Ian asked about the Saskatraz bees. I know a little about them, but very little.
Albert Robertson is behind the project along with a group of Saskatchewan beekeepers. He has some fairly high credentials scientifically AFAIK.
I know Albert and saw him in Orlando, but did not have a chance to talk much. Word has it that he lost his original colonies last winter, but those were old queens by now and kept for breeding. He still has the descendant stock. I had intended to chat with him, since I am interested in getting some strongly disease resistant bees and my friends think quite highly of his stock and use it in their commercial operation. I saw it last year while inspecting and the bees looked good, but they were not a gentle as some. Others are not as enthusiastic as my friends about the project, but I respect their judgement.
Albert sells breeder queens, but they are expensive, and not, I am told, tested. He also has plans to reproduce his stock in Chile and have it shipped up, but the word is that the cost will be high. My friends buy cells from him, run them in a dedicated yard, do their own selection and reproduction and are quite pleased.
So, there, I have told you more than I actually know. Corrections and additions to what I have offered here are welcome, but that gives us a start.