If you can't find anybody who'll trade, you might try newegg.com, they have quality equipment for good prices. That's where I got my DVD drive (and most of my computer, for that matter) and I'm happy with it.
I got a Samsung and it works very well, it was less than forty bucks. Look
here at the bottom of the page to see what I got. I give it my highest recommendation, and I definitely wouldn't want to trade it for anything