Options for upgrading friction DT shifters
I bought a Bridgestone 600 today, and now I have to decide what I want to do with it. I have lots of other bikes, but no proper road bike. I told the guy I bought it from that I might replace the drivetrain with 105, since I don't like DT friction shifters. He said that I could get replacement DT indexed shifters. Is this true? I'd likely prefer a (Rivendell) barcon conversion, which I've already read about somewhere.
Basically I'd like to know my options. If I can be happy with the bike without needing to replace too much, that would be nice.