If you are just beginning in B&W I suggest you just shoot one film...
Ha ha ha ha ahhh ha ha ha!!!
That is certainly great advice, if you can stick to it. The truth is that most of us have several cameras we use, usually covering more then one format. We have shot, or are shooting, a dozen different types and speeds of black and white film, not to mention different developers for same. And we love it!!!
But, I do agree. I would strongly recommend that you start by using Kodak Tri-X 400 with Kodak D-76 developer, or Ilford HP5+ 400 with Ilford ID11 developer. I actually personally prefer other films but these two are great films and developers, and are very, very flexible. Either choice will remove several variables that can interfere with your personal learning and development.
I personally love medium format. I shoot as much of it as I can, but 35mm is probably a better format to start with. It is less expensive to learn with. The reality is that while we all have favorite camera types, the camera is probably less important than the glass you use with it. I strongly recommend spending your money on the very best lens you can afford, and shooting with a cheapo body until you can afford to upgrade it a bit. You may lose a little bit of functionality with your inexpensive film body, but that beautiful lens will more than make up for it.
But, although I most certainly love using film, and God knows I shoot enough of it, digital certainly allows you to shoot freely without concern for the number of frames of film you are running through. I will admit that I do prefer using film for black and white, but digital is great medium for training your eye to recognize a wonderful black and white composition. However, do not let me stop you. We need as many bodies as possible out there buying and shooting film of all types. Have at it and enjoy yourself.
And by the way Eric, I most certainly mean no offense. Your advice really is wonderful and I picked on you because yours was the closest post.
Have great fun, I am going to go sort through some of my various brands of film.