Maybe a little late, but I still want to share my experience ...
Now I am using Sublime Text 2 and using Scheme fine.
First install the Schema package through package management.
Then install the "SublimeREPL" package (for Sublime Text 2).
Then you should have a fully functioning Scheme environment in your Sublime! Syntax highlighting is good, and use SublimeREPL for an interactive Scheme prompt.
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