Bottom Bracket Retool
I recently got a year membership to Bike Kitchen in San Francisco. That basically means I can work three hours a night for one or two nights a week on my bike. I also purchased digging rights, which means I can build a complete bike from their spare bike parts. All costs are already included. The folks there are pretty helpful, some more so than others, but overall, once you start to understand the layout of the tools and what you're allowed to do, and a little bit of etiquette, and also once you have an idea of what the hell you're doing, it's the same as settling down and just getting work on the bike done for hours.
After I chose a nice 52" Bridgestone bike frame from their spare project frames, I decided the first thing I could do was to fix the bottom bracket. (Actually I spent some time last week messing with getting wheels and playing with the handlebars, but nothing real got done.) The frame I chose had the crank and pedals removed already, and only the bottom bracket with the nuts were still on.
1. Remove the bottom bracket. There should either be places for a wrench, or little notches on the sides. One side should have a lock ring. Also see Sheldon Brown's website, although I found it much easier to understand after actually working on one. http://sheldonbrown.com/images/bb-cupandcone.jpg