I've got a fever, and the only prescription is more feeds!

I've been accused of being obsessive, but I can't help it. I gotta have more feeds. This whole subject of real-time feed aggregation, or feed grazing as it's now being called, has really caught my imagination. So I've been looking for something that will cure my fever. I haven't found an aggregator that will satisfy my craving completely, but there are a number of websites that demonstrate the type of interface I need. I'll list them in the hopes that someone will build an OPML capable aggregator with this type of presentation:

• AliveNews has a cool realtime display, but it must be a proof of concept rather than a real site, because it doesn't have any options for expanding the list of pre-defined feeds. Still, the fade-in of feed excerpts is sweet.
• Digg spy is really compelling for the ADD set, but it isn't a true feed aggregator, and it makes me twitch if I watch it for too long.
• LiveMarks by Alex Bosworth applies a different take on this type of presentation to Delicious bookmarks. (via ProgrammableWeb)