I agree that RB is a good place to start if you are a BB user. In addition, you can generate additional RT's for the same instrument so you can make composite tracks. I also like the interface for RB.
Once you get used to the DAW concept (I am just getting comfortable), I would think about Reaper. I have been watching the videos about Reaper lately and it seems to do things that RB can't. I am going to bring my next BB project into Reaper to see how it goes.
As far as your wife killing you for spending the money, you might want to put it in perspective for her. You could be a big game hunter, a car enthusiast or spend your dough on boating and fishing gear. Recording is a lot cheaper.
2b