Lathander, IMHO, has better domain spells than Talos. The elf idea would be good, but would suffer xp penalties for not being elf favored classes, so maybe a half elf would be better. Go with a straight sorcerer, 50/50 doesn't work for casters very well since you wont get level 9 spells. And trust me, a drow beats a half orc at tanking any day
