The iFixIt.com Guide to repairing your iPhone 2G glass

iFixIt.com has good stuff.  Step by step directions, with pictures, that makes it easy to follow, and progress with the instructions as you process through the steps yourself.

Here's their guide for the iPhone 2G disassembly.  They'll take me up to the part where PDA Parts says -- now remove the LCD, Glass, and Digitizer from the Display Assembly.