I'd skip hydraulic brakes and other high-zoot stuff. I have never had an experience in hardcore all weather commuting where my V-brakes were not more than sufficient for rain riding.

Skinnier tires and disc brakes (and rain) can equal braking the tire loose from the pavement...

If you are investing in a nice road machine, I'd advise going a bit simpler on the hybrid side so you can have an all around lock-it-up-at-the-store (or bar) bike as well as something to hit basic trails and roads.