Dammit! Never saw these replies (sorry to get necromantic on the thread, mods!)
Ta' Camus: It'll run happily on a 700Mhz Pentium with a cheap as chips GeForce4 apparently. Hopefully now I've put out another game you'll consider working on summat with me.

Helm: Ta', and there is KO99, but it's too slavish for my liking. I'd wanna' do something with more freeform control and context sensitive controls instead of a bajillion keys.