Do you think SICP should be converted over to a language like python or ruby?

Some, maybe. People out there have already redone the exercises in other languages here:
http://codepoetics.com/wiki/index.php?title=Topics:SICP_in_other_languages

I think scheme is pretty decent because you learn the concepts and don’t worry about syntax so much, unlike some others. I don’t think it will necessarily be better in other languages, but other languages are used more often, so if you need to learn them anyway, its not a bad place to start. Depending on the language, some things might be much less elegant though, and confuse you between the concept and its implementation in a language.