Check out these fine references:
Practical Common Lisp by Peter Seibel - this book is a great Common Lisp tutorial it is also a great Lisp tutorial (hope that helps Peter; I love your book!).
On Lisp by Paul Graham
Common Lisp the Language, 2nd Edition by Guy L. Steele

Lisp Implementations:
Free: Commercial: Detachtty is an awesome program, somewhat simular to 'screen'.
http://www.cliki.net/detachtty
(get the tarball at ftp://ftp.linux.org.uk/pub/lisp/detachtty/)

Random note:
I would be interested in meeting other Lisp (incl. Scheme) users in Albuquerque, New Mexico. If that describes you, shoot me an email at: download@hpc.unm.edu. If you send me spam, my spam filters should catch it, if not, thanks for the material for further training my spam filters. :P I'm hoping that the search engines will catch this and you might find me :)

Lisp User in Albuquerque