I've got the first three Anaal Nathrakh albums, as well as the 'Total Fucking Necro' collection of early demos. They've become less out-and-out chaotic-hellstorm-of-hatred and more considered and refined with each release, without ever really losing the core of intensity that originally marked them as being worthy of interest. Of Akercocke's stuff, I've got The Goat Of Mendes, Choronzon and Words That Go Unspoken, Deeds That Go Undone. The latter is definitely the best of what I've got - an excellent amalgamation of deathy riffage, black metal velocities and proggy, unexpected songwriting twists.