You might want to check out BitC as an alternative to Pre-scheme, for low-level Scheming. Unlike Pre-scheme, it seems to actually have a publicly-available compiler (which I could not find for Pre-scheme).

I’m starting to think that I will never understand LISPers. They seem to primarily excel at describing how mind-blowing LISP is, and coming up with new LISP dialects. Where are the great LISP doers, writing compelling software in LISP that demonstrates to everyone else the superiority of writing software in LISP? Why do I never come across an awesome program that I must use, and incidentally hear that it was written in LISP?