Heh. I was thinking about how the last thread on system sounds just fizzled out, so I did a forum search, And there was a long – and constructive – topic way back at the dawn: What about sound design?.
Several people were generating possible candidates, especially someone with the nick ‘Lexen’ who started the thread. Every link to the samples I tried to follow though is totally, unequivocally, dead.
What a shame.