Okay, thanks a lot for the info, it's been very helpful. As an update on my DC's condition, it doesn't seem to be scratching discs anymore. I'm still wary of it, but each day I finish playing and find no scratches on the disc, it puts me more at ease with it than the day before.
In any event, I'll most likely be looking into getting another DC just to be safe (also, I hope I can find a DC with the kind of modem that DOESN'T require a line voltage inducer so I can play online with you guys). Since my console's condition seems particularly rare, it's probably unlikely that another used one would do the same thing. Still, I might go crazy and buy a brand new one just for that first-time pleasure of opening one in mint condition.
Thanks again for giving me some more knowledge on this stuff.
"...Fix reason firmly in her seat, and call to her tribunal every fact, every opinion. Question with boldness even the existence of a god; because, if there be one, he must more approve of the homage of reason, than that of blindfolded fear." ~ Thomas Jefferson