Yeah I was typing during differing situations, during a game, game only just turned off and when the computer had a chance to cool long after the game.
So there will be inconsistent temps, and I'm looking at ways to combat the GTX 470's apparently infamous hot running. I'm even looking into buying another card for some 2-SLI configuaration, though that'll add to lower air flow possibly. I may have to break out my grandad's welding gear to slice a lovely slot for a new fan.