People will generally have mixed opinions about things like this, so it is important to understand that nobody really knows. I wish we could get into BDs minds and figure out exactly what they want and need, but we can't, so for now we are pretty much guessing...
The chart takes care of the supplement matter... it should also say on the package of whatever brand you get.
I have also heard bad things about phosphorous, so I am taking the safe route. I have also heard that the Rep-Cal brand of supplementation is good, so I am getting Rep-Cal brand of Calcium with D3 powder and multivitamins.
Here are the links (but I'd reccommend getting them online rather than at a pet store; they're cheaper!):
Calcium with D3 (phosphorus free):
http://www.petsmart.com/product/index.jsp?productId=2754048
Multivitamins:
http://www.petsmart.com/product/index.jsp?productId=2754047
I am currently into the later stages of researching... and getting a BD for xmas!!!! I am so excited!!!
Best of luck with getting yours! Great job with the research; the more you know, the happier your pet will be, and the happier you will be.