Good OO Diagramming tool?

Looking for a good reverse-engineering tool that can reverse engineer
Java code in an Eclipse project.

I need a good Object diagramming tool that will make a diagram of
Objects and their relations from Java sourcecode in an Eclipse
project. Are there any good tools that will do this that aren't
extremely expensive?

http://www.eclipsedownload.com/index.html looked good but it cost
$9,900 for a license where reverse-engineering would function.

http://www.sparxsystems.com was only $200 a license, but buggy.
Couldn't get it to install.

Any other good reverse-engineering tools for Java in Eclipse?

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