Is there a way to bring dead party members back to life?

rod of ressurection, ressurection spell, etc..

go to the temples, they sell scrolls that will let you bring guys back to life

Jahiera has a spell called harpers call that will bring a dead party member to life. She starts out with it I think, so it's good early in the game to resurrect people. It will drain 9 hp from Jaheira though, so don't cast it in combat, and the dead person is rezzed with only 9hp as well. (the hp lost is a damage roll, not a permanent loss)