This isn't anything fantastic, but I figured I'd just throw out a bit of information about the newest lock I've had to work with at work. I just bought a copy for personal exploration from eBay, here's the link:
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 7508911991
Now, I know a lot of lock pickers wouldn't be able to assemble and dissassemble a lock system like this, so I'm just going to run through the dissassembly for anyone who wants to know. Just for general reference, only the side facing out has a cylinder in it - the lock is locked and unlocked from the inside by the buttons that face the door frame when the door is shut and locked, or by using the key on the outside knob. The lock contains 6 pins which are often master-keyed due to this locks most common use (classrooms, office buildings). The ones I worked on had a restricted keyway, but I doubt this one does. The following is LONG, so read on only if you choose!
Onto the dissassembly. First of all, you have to remove the knobs by unscrewing two screws on the inside knob. Dont unscrew them too much, or both knobs will fall out of the door. Pull off the outside knob, and toss it onto a table or whatever, face down, so that you can work on it. Remove the trim (the plate that covers the door, prevents access to inside of lock) by removing a clip that holds it to the assembly (The clip looks like U and can be removed with special tools). Pull the trim off and set it aside. You should have a doorknob with the cylinder assembly protruding out the back in front of you.
To access the inside of the doorknob, there may be a nylon ring you have to remove. This just looks like a rubbery "O" at the base of the knob. Gently spin it with a wrench to remove it from the assembly - these are very fragile. If you don't see a nylon ring, there should be a small screw or a roll pin holding the knob in place. Unscrew the screw, or hammer the roll pin into the knob. Now go ahead and unscrew the assembly from the knob. Be sure to hold the tailpiece firm between your pinky finger and your palm - if you don't hold it well, it will go flying. Gently set all the pieces back down after unscrewing them. You're now free to remove the cylinder and the roll pin from the knob.
After replacing the cylinder, make sure that the grooves in the cylinder back match up with the grooves in the back of the doorknob. Pick up the tailpiece, look at the part that goes into the knob, and align these. Now, making sure to align everything correctly, insert the tailpiece back into the knob and screw it all together. Keep screwing until you can no longer, then turn it in reverse until the roll pin or screw hole matches on both sides. Insert the screw or roll pin, then put the nylon ring back on (if applicable). Put the trim back on, and replace the clip you removed from the back.
To get the knob back into the door, hold the whole assembly so that the keyway is vertical. Wiggle the smallest tailpiece coming out the back, eventually leaving it in the shape of a diamond. Push this piece into its respective hole, then screw everything back on. Try your new keys, and wipe the lock and door down. Congratulations!
-Elijah
For those of you who read, I hope you can use this information at some point in your life. It's actually quite fun once you get the hang of it!
