I rang up two of our local photo lab places today to find out how much they charge for negative scanning (35mm and 120).
A roll of 120, already processed, is $53!!! I did some quick calculations and decided that it would be cheaper to buy a negative scanner and scan my own.

So... I've just spend $440 on a brand new neg scanner. OO scary. The reviews were good, I just hope it pays off!
Wish me luck!