My favorite project at the moment is an internal program I'm developing to generate reports on online advertisement performance. It includes a massive database with over 1 million entries in some tables and a user friendly front end with the filters, fields, sorts, graphs, and tables needed to understand the data. It's running on windows xp with xammp which is a departure from linux servers which I'm used to, but it gave me an opportunity to learn to accomplish some things in a different way. Instead of a cron to schedule daily imports I have a windows scheduled task calling a .bat file which is invoking php to run the script in question. The presentation is flexible enough to save our media-buyer allot of manual data-crunching and get right to the strategy.