One of our members heard of my quest to find a Digg-like script that I could run for specialty niches and responded with a review he found here.
Seems we are getting closer, but Pligg is still buggy and everything from Scuttle and the few others out there so far are extremely nerdy installs and pretty buggy.
At some point someone is going to wise up and write a combo Digg/Technorati script and sell it to thousands of people wanting to replace old link directories in favor of real content tag and story directories built for their niche.
Wish I was a programmer with the time to put into this. It is a $100,000 software sale waiting to happen. (Hint hint code jockeys!)