The local repair places wanted $150 to fix a cracked screen. I ordered a replacement from ebay for $7, including all the necessary tools. (it is $5 now)
I watched several youtube videos and they made it seem really difficult:
But once you get past the smell, which was really really bad, it was simple. The hot air gun made the glass come off easy with a guitar pick. Once I got about 2/3 of the glass off, the liner pealed right off. After cleaning, I used the included adhesive strips to re-attach the screen.