Check out www.globecom.se/tora

TOra - Toolkit for Oracle

I use the RH Linux version and am very impressed. It has a ton of features that'll just blow you away. Their alpha/beta versions seem to be very stable on release. No problems there.

Here's a user's quote from their page:

It's AWESOME! I'm a developer for a company who uses oracle a lot, but being Solaris based, haven't really had any nice tools to use. TOra, even in this pre1.0 form is sooooo cool. At last I can stop using sqlplus! I've already got about 10 people using it, and more are sure to follow...once I tell them about it.
Richard Sheldon