Damn. Great tutorial, although anyone attempting this needs to make sure they take their SD card out. It will break.
I was fortunate enough to remember to take out the card, and got it apart fairly easily. A microfiber cloth I use to clean my glasses took care of all dust, and I also made sure to dust out the circuit boards with a can of air.
But as luck would have it, I cracked the front of the LCD; I guess I used a little too much force while prying it out. The display still works perfectly and there is no bleeding, so I only cracked the thin glass in front of it (not the main screen). It's up in the corner and not too noticeable when the screen is on, but I traded an excruciatingly annoying amount of dust for an only slightly less annoying crack. Anyone know where I can buy a replacement LCD? The link provided earlier in the thread was just for the front screen cover/digitizer. I found an LCD on that site, but it's for the European Hero.