My apologies if this is a double post, but I can't find the post I made about 30 minutes ago, so I'm suspect that I didn't hit post like a dummy.
I'm looking to host a Slashdot-like site that brings together news sources and promotes user discussion. I need a system that allows for moderators of content catagories, user commenting and rating of articles, user comments, and user submissions. The front page is very important to me; I want to display a lot of information in a consice, easy to use interface.
Currently I'm looking at Joomla, though I'm discovering that many extensions are not freeware. I'm open to any other suggestions, other than build it myself.