Nice. Just missed Nile and Decapitated, and really should have got them. Oh and Necrophagist's album is "Onset of Putrefaction" and Dark Tranquillity has two L's.
Not a great list in my opinion. Should cut out the melodeath and add in lots of influential bands, incantation, immolation, demigod, abhorrence, suffocation, bolt thrower. Lots of stuff more important than what's represented here.