Thank you for the link. Lisp-y things have a soft place in my heart, although I must say I never did any productive with them (Python happened to be our software stack back then). Neithertheless, they gave me interesting insights into CS. I dabbled with Chicken Scheme, but the difficulty to run an IDE (there is Emacs, but is not so trivial to get it running) gave me lots of headaches.
DrRacket seems to be a refreshing alternative.