http://blockchain.info/fb/12hiI believe this address would be high on the list if it wasn't "cleared out". I believe this one belongs to Satoshi because the oldest transaction was 3 days into bitcoin's existence. It seems a lot of mining rewards from the very early days were sent here. I tried to follow the money, but bitcoin did its job and led me nowhere.
Znort, how about running the closure and 'taint' tools on this address, that would at-least give a broad-brush generalization of if these coins were scattered to the wind or stayed consolidated, I suspect it would be the former as people were much loser with BTC back then when it was really worth nothing.