http://www.angelfire.com/pa/Raluminat/index.html
That guy has them. Have never done business with him but have heard he's legit.
Really? I wouldn't trust some guy with a free Angelfire site....especially after a phishing warning just popped up. 
Swap trick is a PITA and hard to do unless you decase the system, IMO. Not worth the effort if you can chunk $25 at the problem and never worry about it again.
All I had to do was open it once to adjust the door sensor to be "always closed" and I just open the lid like normal for the swap. No de-casing.
I've done that, sticking a wadded piece of paper in the sensor, but doing this on any system is not bad for the laser.....it's bad for the spindle motor. They're tuned quite fine, and grabbing the disc while it's spinning will eventually throw it out of whack or kill it.
I wouldn't buy from someone with such a simpleton site on Angelfire either. I used to buy mine from Xinga as well, and even though they're not easily found anymore......that $25 price tag is WAY out of line.