I have decided to get some training in bicycle mechanics so that I can maintain my own bikes without having to leave them at an LBS for several days. The local vo-tech offers basic routine maintenance as well as an advanced class covering complete overhauls. I plan to use these skills to overhaul and upgrade my old 1995 Trek 730.
The Trek has the old grip-shifters which I plan to replace and since the brake levers feel pretty flimsy and cheap, I plan to use integrated shifter/brake lever units. I also want to replace the drivetrain so that I'll have new, silver, 9-speed components.
Any recommendations on what components would be good? This will be my primary bicycle for an exercise program and while I don't want to spend a fortune, I would like to get components on the lighter side. I plan to ride 50+ miles per week, maybe more. My riding will be 100% pavement and I definately want to stick with a 3-ring crankset. I basically want to build a good, high quality bicycle that I can use for many more years. This bike has a lot of sentimental value and I love the way it rides.
My budget is somewhere around $300 for drivetrain and shifters. I don't include BB, chain & cassette in that budget. This is as much a hobby project as it is a practical upgrade so I'm sure I'll be replacing some things that are still serviceable.