[plt-scheme] Database Interface

Hi Everyone,

  I've been playing around with the plt-scheme web server and have
been throughly impressed with it (I love the whole k-url continuation 
idea).

  I'm planning on writing a calendr/bulletin board/todo list (yes, I
know other solutions exist out there -- doing this mainly for fun /
learning purposes). I'm wondering --
  1) Are there postgresql/mysql interfaces for plt-scheme? (Could not
find them myself).
  2) If not, what's the plt-scheme way of having a database equivalent
in this situation?

Thanks,
--TongKe