I realize this is a years old thread, but the same problem exists now. I'm thinking I might shift my setup to 9 speed STI rear with the Deore line and friction on the front derailler.
I have a question for those using friction on the front and a brifter on the rear - where do you find matching brake levers - brifters? Do you just get a set of STI brifters and ignore the left shifter or does someone sell something else to use?