Check out "Software Estimation: Demystifying the Black Art". It's full of great light and heavyweight techniques I use all the time in my day to day running a

Check out "Software Estimation: Demystifying the Black Art". It's full of great light and heavyweight techniques I use all the time in my day to day running a fixed fee software development company (which basically thrives or falls on the quality of our estimation and the risk pricing to go with it).