I'd recommend going with hydros too, though IME squeaking is a fact of life with disk brakes to some extent.

Just a word of warning if you go with BB7s. Don't use the adjuster at the brake lever when compensating for wear. I know with some models fitted to Cannondales you could adjust them this way, but with the BB7s you must adjust them using the knurled wheels down on the caliper or you'll quickly find that the cable is up against the end stop.