Hi,
The Haskell Policy recommends Cabalized packages, but I don't see the Cabal software packaged for Debian anywhere -- or have I just missed it?
FWIW, I intend to ITP several Haskell libraries in short order (HUnit, HSQL, one of the shell libraries, and my own as-yet unnamed library), so these formerly-theoritical library packaging issues are no longer theoretical :-)