I finally gave up on Nanashi (I got tired of running into spoilers in other forums) and downloaded the subs that were done with the leaked scripts. The wording was rough a couple of times, but nothing too bad. There's a torrent here (http://www.datorrents.com/download.asp?id=10799&name=Eureka.torrent) that has the full series (the Nanashi subs and the leaked batch).

I ended up loving, liking, or loving to hate just about everyone by the end of the series.