Up to now working on my bike has been limited to adjusting derraileurs, changing cables, and truing wheels (with limited sucess). I would like to venture into a few other maintenance/repair items, such as removing the cassette for cleaning/replacement, removing the crank & chainrings, and maybe even the bb. So, what tools do I need, and is there a tool box/kit that comes with the most commonly used tools? I'm concerned I'll buy the wrong thing. I have two road bikes, one with 8 speed and one with 10 speed Campagnolo components, and 3 1990's mountain bikes with lower end shimano parts.