About half an hour ago, I finished this game with 100% completion. A lot of time went into that, obviously. As I was typing a thank you message on this forum 10 minutes later, my hard drive gave up. Unable to get it to boot anymore, I managed to mount it on another system just long enough to copy off my personal files and mail etc.
Now it's completely down. Won't even reach a high enough spin-rate anymore. When I move it, it sounds like there is sand in there.
Anyway, to finish what I began...
Thanks guys, for the trainer, without which I probably wouldn't have had the patience to go for 100%.