Ask YC: Thoughts on a new project - log analytics for web apps (and a Q. on ZODB)

Fed up with mediocre web analytics software that is aimed at marketing types, I have decided to write my own more technically oriented log analytics application. I'm basically going to generate summary graphs and numbers which we will display on an attractive, simple dashboard the big LCD TV in our office. The data will come from periodic grabs of log files in /var/ and maybe from an HTTP polling thread. I have two questions: 1. Pure Python persistence - does anyone have any good experiences with ZODB or anything else pure Python? (this is for fun) 2. What information would you like to see on a web app dashboard / analytics report, that you don't get at the moment? Am not promising that I will make anything, but if I do and it turns out OK I will release as an open source project. Many thanks