How to decap a chip to expose the die?
Travis Goodspeed has the tutorial: http://travisgoodspeed.blogspot.com/2009/06/cold-labless-hno3-decapping-procedure.html  Basically you put the part in a test tube with NO3 and swirl it around and leave it overnight until the encapsulation is dissolved.

Only slightly related, but look through Travis's Flickr stream for a lot of interesting dieshots.