Which environment, IDE or interpreter to put in practice Scheme?

Question

I\'ve been making my way through The Little Schemer and I was wondering what environment, IDE or interpreter would be best to use in order to test any of the Scheme cod

Answer 1

Just for the record I have to mention IronScheme.

IronScheme will aim to be a R6RS conforming Scheme implementation based on the Microsoft DLR.

Version 1.0 Beta 1 was just released. I think this should be good implementation for someone that is already using .NET framework.

EDIT
Current version is 1.0 RC 1 from Oct 23 2009