Perhaps i didn't read the posts thoroughly enough, but i didn't see anywhere that said your wife likes this lifestyle. It sounds like you are wired for D/s but is she? Even vanilla types find a little slap and tickle fun now and again, but the dedication you are looking for out of this lifestyle has to be evenly matched with someone who shares your ideas as well.
If she is genuinely interested in this lifestyle, and not just because she wants to make her husband happy, then i'd agree with most here and say that slow and steady wins the race. Communication is key, like in any relationship. I will admit, that I had no idea how big this whole thing was, and rushing through things just to get to certain goals will result in disappointment. We all want to get to our destination, but believe me, the trip there is half the fun.
Good Luck!
bent