FrontBase support is excellent
If you need an excellent database for UNIX, Windows or Mac OS X, consider FrontBase.
I'm doing some maintenance work on an existing WebObjects application that uses FrontBase, and I had a question.... emailed their support email address, and within minutes I had a response. I sent another email for some additional details and received another prompt response. Gotta love it.
And the database is great, too. :-)