import from ibm db2

i'm looking for a way to export db2 database schema/data and import it
in postgres.

don't know if it matters but i'm using postgres on ubuntu (version
8.3.3-0ubuntu0.8.04) for development and deployment is on db2
(obviously not my choice).
sometimes i need to import data from production server so i'm looking
for some tools to enable me to import data into postgres.

Aljosa Mohorovic