I'm not sure why people act like hydro discs are more work than mech disks? In every debate thread people go on about the BB7's and there pad adjustment, hydro's do that every time you pull the brake lever. Also with cable stretch I think that mech are a pain in the arse (My wife's are) while my hydro's are maintenance free (Hayes HFX-9 HD and Shimano Saint). The thing I really like about Hydro's is the fact that they braking is effortless, because the hydraulic pressure does the work for you.
Take it as you will but hydro's are the way of the future, eleventy billion auto's can't be wrong.
-mike-