Just wanted to update my situation.
I sent my Macbook Pro 2.8 in for service expecting them to just give me a new machine. My laptop had dust under the screen, the black screen problem, was unable to detect DVD-R or +Rs, had keys popping off that clicked loudly, a wonky trackpad, and a hard drive that frequently corrupted itself.
Instead, I got a call from AppleCare. The tech said they were replacing the screen, but had been unable to replicate the black screen problem. After a few minutes of explanation, he finally agreed to swap out the logicboard.
Just received my repaired Macbook now. Pretty much everything was replaced except for the DVD drive and battery. And the back aluminum plate.
The logicboard was somehow the root of the bad DVD burning problems, and the first discs I put in the drive were recognized and burned perfectly.
Of course, I tested the black screen problem. I booted it cold, went in to Dalaran in World of Warcraft right at the fireworks festival, with every graphic setting turned to max. This is normally how I could get it to crash.
The temps spiked up to 105C, but it did not crash. I figured it would because the fans still didn't spin up until 95C, but they kicked in and eventually the temps went down to the low seventies as I ran around town. It seems like I've got a winner.
The new LCD they gave me is vastly different, looking washed out in comparison to my old one. But it has no bad pixels and zero dust, and after applying some new icc profiles I was able to get it close to the previous screen, so I'm happy overall.
Was really worried, but it seems like I'm finally set.