I had one until about 7 or so years ago that I built up with all Sun Tour Cyclone grouppo. Was a pretty comfortable ride for my 175# (then) body. I think it's better for spinning than for mashing big gears, tho.

One of the more interesting drive train buildups I've seen done was to put a TA Cyclotourist triple on the front along with a Huret long cage Jubilee RD.