Looks like those hopes have been dashed.
That card, not requireing any external power having a fairly small footprint would have gone perfectly into either the third PCI-E slot on my main i7 rig or found a home in my folding rig which has already run out of wires (Some long molex wires will be going in their soon).
With every cloud though.........
It looks like I have got my hands on a 560 none Ti. At the very least it's a straight swap for the 460 786mb in my folding rig. I should be able to gain, at a guess 2k PPD over the 460 which was stable at 800mhz.
Off the top of my head I cant remember the PPD for the 460 @ 800mhz, I've been away from my babies for too long. 12.5k seems to ring a bell, but that would depend on WU obviously.
I will look into what configs work best (remembering the 460 doesn't work well with the 560 Ti), I have no idea if certain combinations with throw off the PPD from what it should be.