[plt-scheme] Canned Scheme presentation?

[Grant Rettke]

Hi folks,

Milwaukee is having their 2nd barcamp this October:

http://barcampmilwaukee.com/

It seems pretty fun; and if there is any interest I wouldn't mind
talking a little bit about Scheme.

I don't want to write a presentation from scratch, although I do have
source code to review: Euler, DrS tool, this and that, a data
matcher/code generator.

That said, could anyone recommend an already prepared (canned)
presentation about Scheme that I may present?