Thanks for the insights. My neighbor got into road cycling for similar reasons a couple of years ago, and he tells me he never runs any more. I suspect that I'll be doing the same after awhile. I've thought about going the used bike route at first as well - maybe pick up a Trek 1.2 or Cannondale or something of similar quality for a few hundred to get me started. I'm a little hesitant to do so from reading all the posts on the importance of getting the proper fit, adjustments, and guidance at a LBS. Then again, I know the frame size I'll need, and there's plenty of guidance on this forum and others on basic adjustments, etc... Thanks again for the encouragement.