Looks like a Kwikset Ultramax. I think its a 6-pin and it has spools. I could be wrong. Very sloppy tolerances should make for easy picking. The recessed first keypin chamber like I believe is there to help you insert the key easier.
The code is hidden in the tumblers. One position opens the lock, another position opens one of these doors... http://www.youtube.com/xeotech1
femurat: They're called restricted for a reason... Innerpicked: The more keys you carry, the more important you look GWiens2001: Great video! Learned a lot about what fun can be had with a forklift and a chainsaw. pmaxey83: but i first have to submit the proper forms for a new hobby to my wife