Earth - love "The Bees Made Honey.." but not sure where to go next. Earth 2 seems pretty seminal, but I'm not sure if I can handle all that drone (although I am looking for ambient stuff). Hex seems quite good also and the rockingness of Pentastar is quite appealing.
Fugazi - Enjoy "The Argument" a lot. I'm guessing Repeater is more or less essential?
So yeah, if you want advice about what to buy next by a band, post it here.