Source Of Dominion is straightfoward simplistic death metal is the typical Swedish style. Decent, but not outstanding. Definitely worth seeking out for avid fans like yourself, though.
I haven't heard the whole of World Without God, but from what I know it's very cool Finnish death metal, baring similarities to Slumber Of Sullen Eyes and other classics of the time.
Mordicus is basically an Entombed clone, with a lot of 'death 'n roll' riffing and extremely irritating treble spikes. It has its moments, but is generally not worth the effort of seeking it out.
Old-school death metal recommendation of the day: Disgrace (Fin) - Inside The Labyrinth of Depression.