looking for a powerful frontend/teport generator

Hi,

Sorry for beeing a bit off-topic.
Recently I've done some database-fontends, which I used
java+swingset+netbeans-gui-builder for.
Compared to plain java development is quite fast - however I wonder
wether you could recommend db-fontend generators like the infamous
access.

What I've found so far was either:
- extremly expensive
- not compatible with free DBs (like postgres)
- not powerful
- not cross-platform

Does anybody know tools which don't have properties like listed above?

Thank you in advance, Cleens