Lookin' good to me. The effect on the B&W's is pretty cool. Likin' the grain, a lot. 
It's a bit tough at first, to guage everything with the softbox, and umbrella...but, as long as you keep everything about 45 degrees to the model/wife on either side, you should be good to go.
I'll link a picture, and describe where I placed the lights (though, I don't remember the power settings). Click Here.
One light (a 580EX) was placed inside the softbox at about 45 Degrees to the model. The light was on a stand about 6 feet up, and to the camera left, and tilted 'down' as far as it could go with that softbox.
The second light (another 580EX) was placed on another light stand, behind and to the models' left side (camera right) about 6 feet up, and again, at a 45 degree angle to provide the hair light. I used an 11" white umbrella as a bounce source.
There was a 'little' bit of natural light coming from up above (as we were in a parking garage).
That was it. I believe the exif is still retained, in that file, but for ease -- 5D + 85L, 1/160th, f 5.6 @ iso 100. The lights were about 3-4 feet in front and behind her so I could get the coverage I needed.
Hope that helps, but, your shots are really nice. 