Hi and welcome to our gang here!
I will give you a quick hello and some of our starting links and Able will later answer your specific question.
You can already answer yourself a lot of question by following Ables and Rasters protocol here:
To your question with the probiotics: Buy the best quality you can afford like that one here: http://www.amazon.com/Megafood-Megaflora-Optimal-Potency-capsules/dp/B001AG4SHE/ref=sr_1_1?ie=UTF8&qid=1322102218&sr=8-1
Check that they have 20 Billion active 14 life-enhancing probiotics. Very important is that they contain DDS-1
this was only a quick hello from Thomas. I am sure Able is going to answer you more detailed than I can.