Top Blogs

Hey

I am running a site using WPMU and BuddyPress. What I would like to achieve is making a “Top 10 Blogs” list with, well, the 10 most visited blogs on my WPMU install.

Anyone know of a plugin that does this, or if not any other method simpler that adding tracking code manually to every template?

The above is my only idea so far. A short snippet that on load registers which blog is being loaded, and just adds another pageview to that blog in a database. It would work… sorta… but there must be a better way.