Stupid-simple Database App -- AppleWorks the Only Option?

My dad loves cataloging his photo negatives (thousands of them) in databases. He also has a database he uses to run a small business. And he's currently using Microsoft Works 3.0 Mac to do it. Yes, that's right, a Classic app well over a decade old that's been dead on this platform since the early 90s.

I really, really need to get him switched over to something that isn't as brutally unstable (save without closing and re-opening the document, and the entire file is wiped out on a crash) and has some hope of a future so that these databaases will remain accessable to those of us who don't maintain copies of crusty old software.

Problem: He isn't any sort of database wiz, he just likes organizing data. All he wants is to be able to easily set up a single-record screen, have a list view, and some moderately simple way to print reports, plus Macros--he LOVES macros.

So that brings me to the question: The Database in Appleworks is actually very close to what he wants (save Macros, but those can be handled by another app), but it's basically dying technology. Filemaker is drastically more than he needs, has far too steep of a learning curve, and is too expensive anyway.

Are there any other really simple options out there, or does everybody just (mis-)use Excel or buy one of the more powerful packages?

I've heard 4D and Openbase mentioned, but both of those seem like way more than is necessary, even if there is a low-end version. Am I mis-understanding how easy it is to set up a new database in them>?

And yes, I could custom-design him a couple of databases in FileMaker and just let him use those, but I'd rather give him something he can learn himself and works not wildly differently from the system he had before--the guy's in his 80s, so he really doesn't want to waste too much time re-learning stuff. The basic system he has going is fine, it's just that the software he's using to do it is all but dead.

Then again, it's rather impressive that he can run 1992-vintage software properly on a DP G4 under 10.3, and it still does more or less what it should.