Priest Low Level Spells (1-4): Any Cure Wounds, Dispel Magic, Holy Smite, Negative Plane Protection and Animate Dead at level 15 and higher.
Priest High Level Spells (5-7): Heal, Insect Plague, Lesser and Greater Restoration,Sunray, Earthquake, Chaotic Commands and Righteous Wrath of the Faithful (please correct me if I'm mistaken,I'm talking about that spell that gives the priest a boost to strenght and constitution and all attacks do maximum damage).
Mage Low Level Spells (1-4):The old and good Magic Missile, Stoneskin, Flame Arrows, Mirror Image and Invisibility.
Mage High Level Spells (5-8): All Contingencies and Spell Sequencers, Lower Resistance, Cloud Kill, Abi Dalzim's Horrid Wilting, Death Spell, Simulacrum, Khelben's Warding Whip and Spell Deflection.