It would also be neat to follow the blockchain and add up all the eligius payouts for the address on the same graph.
I agree, but that looks like a lot of work for a feature that is not very useful. Also, with time, the current balance wouldn't be as readable because of the scaling.
Wow, nice. I am so glad that you created this as another user's version is down at the moment. I will switch to monitoring with this. Also thanks for sharing the source. I will put it up online on my dedicated server as a backup.
Cool! Don't forget to set up the cron jobs properly (I currently run "update.php update" every 5 min, and "update.php graph" every 30 min). I also put a .htaccess to do some URL rewriting (redirect everything that doesn't begin with index.php or graphs/ to index.php) and control the expiration cache (to help saving my already-poor up bandwidth), I set the graph's expiration date to Modification time + 30 minutes so that if you refresh the page, but the graph was not updated, you won't reload the image.
Thanks for the tip! If Eligius stabilizes I may make the graph page public so everyone can benefit (I got cheap bandwidth anyways).