Hey Ubercool... it finally happened to me too...
Out of the blue, all of a sudden, and without any warning, my super drive started sticking. If I tried to put a disk in, it would feel like it was hitting something. I could still push it in by wiggling it in and pushing from back to front. It would work, but when it ejected you could hear how tight it was and it would scratch the top of the disk. The first time, gooey stuff came out on the top of the disk. Now it just scratches it.
Went right to the Genius Bar last night. They said that they were told to "capture and replace all defective Alums and not repair them". Apple wants to see why they failed. Since mine is custom, I would have to wait for a replacement. Not wanting to give up my near perfect one for slanted keys, or a bad display I fussed a little. The Genius went back to check on updates to their directives and came back and said that since it wasn't display, keys, or a common problem issue, they would repair it. They will replace the drive with another one just like it on Thursday for me. (They would have done it right then, but no one was working repairs the day after Thanksgiving.)
Damn, my "PERFECT" little Alum has a teeny tiny flaw. Oh well, there it is.