cool as man,

I would go the easy option with the cut face tool (Im lazy), then copy the faces I want to keep (or hide them). Then delete edges, though I suppose you may as well use as you say the split poly tool. I tried what he meant but all it did was create poly lines centrally on the face etc, you know more than I do so I will say that is from me amigos.

PS Jay I think he meant diagonal?? from the right hip across the left shoulder down the spine back to the right hip rear??? I could have read it wrong.

cheers bullet