O k, it seems the 1^st thing in order is to get up a simple mysql or postgresql database going to put these entries some place. Since I've already got mysql going, i'll use that, but I generally like postgresql better (and, as a separate issue, Sun just officially decided to start using postgresql as well). At any rate, the only sensible thing to do is to whip out OmniGraffle and start designing. There's a nice Graffle2SQL script to help here. The other thought that occurs to me is to use SQLite, which would then allow me to whip up a nice Cocoa tool to manage the database, something a touch more customized than the also great CocoaMySQL or the several nice Cocoa Postgres tools. All things considered right now, I'll just whip up something by hand in MySQL to get the ball rolling, then I'll graffle it.