I'm currently running a Shimano D/A drivetrain (used 2001 Trek, I'm not rich). The Texas hill country where I live is blessed with some STEEP ascents, so I'm thinking of switching to a triple to save my knees. What are parts I'm looking at to accomplish this, i.e. shifter, front derailleur, chain, crankset, etc? I'd like to switch from a 12-24, to an 11-21 cogset also. My thinking is that the triple crank with an 11-21 cog gives the best range of shifting in the middle, without sacrificing too much climbing ability.
I was also thinking about a Campy 10 speed, but I have to confess I have no experience with a Campy set-up. I'm pretty much a set it and forget it type, so the stories (true or false) about Campy high-maintenance woes scare me somewhat.
Any thoughts would be appreciated.