I know how much pain it is to lose the source to a game, it's happened to me a few times.. mostly due to hard drive crashes and an inadequate backup regime.. each time, I say "I'll take regular backups" and each time, I don't bother.

How much work did you lose mate? Is it possible for you to get back on your feet? or had you done lots of work already? We've got next week, you're a good fast coder I think, you should be able to get back up and running. It would be a shame if you gave up at this early stage.. and who knows, you might find your memory stick and be able to re-use some of your previous code. All is not lost yet.