I've decided to get back into mountain biking after a pretty long departure and decided I would like to build up a bike instead of buying a whole one, the problem with that is I am not totally sure on the proper installation of all of the components. I never got too into the mechanical aspect before, like I would take off my derailleurs and take them apart and clean them or do tune ups, but I never installed things like bottom brackets or headsets or freewheels or anything of that nature as I never replaced any of those on my old bike. Just wondering if there was a really good place on the web or a book that I should look at to find everything I will need to help me build the bike, especially making sure I lube or seal everything properly as I assemble it. Any input would be great