Thanks to all who replied, greatly appreciated. I am a pretty accomplished mechanic, on most things, I own a shop in Texas where we restore Vintage boats and motorcycles. i am not a total stranger to bike mechanics, just been a long time. In the 80s I was a sponsored triathlete and pretty avid cyclist, did most of my own work. BUT!! I got way away from the sport and havent really touoched a bike in over 15 years, its good to be back. I am on a pretty tight budget, after my first bike got stolen, but I came across a few Mountain bike frames today. A Gary Fisher, A Haro and a Boulder.. along with some assorted parts. Considering turning the Fisher into a fixed gear with the parts I have for my daily rider.. any comments?