I've heard of Sigur Ros, they're on pitchforkmedia.com and I'll check out their review.
Yeah Chuck, I have F#A#oo and Lift Yr. Skinny Fists Like Antennas to Heaven. The latter is far better. I'm gonna get the new one, Yanqui whatever, within the next week. I highly suggest you check out A Silver Mt. Zion. It's just like Godspeed, and incredibly, equally as good. The guy even tries singing a little (though thankfully only a little, he doesn't have a great voice). "He Has Left Us Alone but Shafts of Light Sometimes Grace the Corner of Our Rooms." It's incredible.
Whatever you do, steer clear of Molasses. The guy at my CD store recommended it as a good GSYBE side project, but it redefines awful. The guy sings the entire time and has a horrible voice.