Read SICP...together <3

I propose that those of us who haven't yet read SICP resolve to beginning reading SICP right now. Let's use this thread for discussion, Q&A, and sharing our solutions to the exercises. Come, let us share in the joy, the pain, and the triumph. There will be Knights of the Lambda Calculus badges for all.

http://mitpress.mit.edu/sicp/full-text/book/book.html

New to Scheme. What's a decent interpreter that isn't bloated as fuck? MIT Scheme has insane error handling and won't let me run scripts from the command line. Bonus points for arrow key bindings.