cf-
I believe the BB shell will stay 68, but maybe the spindle length is different? 107 refers to the axle length of the BB. If it is the same as the Miche, maybe the insertion depth of the axle into the crank is less based on the taper being different on the Shimano? Hmmm...now I am too curious to do anything worthwhile at work today! Let me know what you dig up.

*edit - can't wait to see the new wheels. they'll be sick I am sure!*