Thanks for all the info. I will try the sites you all have suggested. I live in Bradenton, FL just south of Tampa. By "wrenching skills" I am assuming you are referring to my mechanic skills. Those are pretty high. I can perform pretty much anything involving repair or replacement of something on a bicycle. I have plenty of tools. I also ride motorcycles and so I have learned some things over time about repairing cars, boats, motorcycles, and bicycles. I do really enjoy riding but feel something lighter, and with more a more up to date gear train would make things more fun. So, thanks and I will follow up with your suggestions.