Seriously... it was one of those things that you experience only once in a lifetime.
You can find most of the concert on youtube if you missed it (and you're wack) ... but doesn't even compare to being there and listening to masterpieces (The Gloaming, Idioteque, Weird Fishes, and about 20 other songs that were on the setlist) from these geniuses live.
Hey, did you know you can put up any really cool YouTube videos that you find? The 'Add Videos' feature let's you specify YouTube videos. You just need the embed code to add it.
Can you post some of the good RaDioHeAD videos you found? :)