I am in the process of changing from a Extract/Specialty grains brewer to more of a partial mash brewer. Before you suggest it, I am not going all-grain because I want to brew on my stove and it won't do a full boil. I have set up a 5 gal coleman cooler as a mash tun and plan to use the batch sparging method (following the links from Denny). I can now safely use around 7-8 lbs of grain, which should greatly improve the process.
My question is that I need help finding the information resources to help with converting extract or all grain recipies to my equipment. I do not know my average efficiency with this equipment yet, but I know this will be a very important number to have and plug into a formulation. I have read the information before, I am just having trouble re-locating it.