I would happen to be the "other DM" that Kristivas was talking about in the OP. I agree that the spells should work together for damage, but the way the Vampiric Touch spell is written you'd get half of it's damage back as health. Now I've said to Kristivas many times, that it's his game and he...
I read things over and decided no to do the Gestalt thing right now. This is actually my frist eberron game and I'd rather get a feel for the game itself then have to worry about adding a new game mechanic. Guess the players will just have to come up with a way to get a cleric or something...