PDA Parts always looks smooth.

$92 on eBay -- the Glass, the Digitizer, and the LCD too.  That's what I have.  I saw how hard it was to spare the LCD when the Digitizer has a problem.  The digitizer is the component on the back of the glass that tells the iPhone where and how its being touched.  My issue is that my iPhone 2G is dead in more than one area of the touch screen.  

Here's how PDA Parts suggests things be handled:

(PDA parts always makes things look a lot easier than they are. Those sections where they say -- be careful - there's glue on this -- oh, yeah!  Also note that they say "The hardest disassemble we've done" -- Plan on it.)