Thanks a lot Mugs! Wad merger was just what I was looking for.
EDIT: Oh, one more question... I've imported the torch item into my catacombs level as well as the torch animation skin thingie and everything works all fine and well except that when Lara kneels near a fire to light the torch, she seems to stick in a rigid position for a second. (I'm sure that I've imported the animation for the torch into the level.) Do you know how or if I can get Lara to light the torch correctly?