I've finished today the database schema for the bugtracker. Took some time to figure out how to store the interdependencies best, but I'm happy now with how it looks like. Got also eAccelerator running. I've been using Turck MMCache all the time while it was updated, but with PHP5, the project stopped and now exists again as eAccelerator. Really great stuff, damn fast, saves some time when writing a web app as stuff that you need often is compiled once and reused.