Last annoying question on my long drawn out saga of my PC upgrade, I promise!!!
A Google search has a number of comparisons, all of which are quite old from the US. The general consensus seemed to be that the extra US$55 for the 8600GT back then wasn't worth it.
However, now:
http://www.xpcomputers.co.nz/views.asp?hw_id=1474
$179 for the 7600GT vs
http://www.xpcomputers.co.nz/views.asp?hw_id=1901
$138 for the 8600GT.
So now it looks like the 8600GT is actually cheaper than the 7600GT.
Does that mean the 7600GT is better? I know the 7600 is DX9, while the 8600 is DX10, which you would think would mean the 8600 would be the better option. But is it?