The goal for my own personal website was to highlight my abilities as a designer, Flash developer, programmer, and musician in a visually engaging (but usable) way, and also to provide an online portfolio of my work.
I usually just program & animate, consulting with creative directors and designers along the way, but for this site, I did all the design work myself. And besides, I had this great idea for a 3D nav that I really wanted to experiment with.
The PHP back-end handles actions like sending emails or signing my guestbook. Entries from my blog and photos from my Flickr page are integrated automatically. A custom-programmed music player loads and plays MP3 audio files of my music dynamically.