yeah, like molten magma and it'll fry anything in site with its high power consumption and heat output.
On second thoughts, if you live in Siberia it might be a nice alternate source of heating ^_^
However, Seriously, one is fine, anymore than that is IMO too much, just get a Radeon if your going down that path, there due for a price drop in the coming month(s)
Erm...nVidia took care of the power issue with it's latest drivers! Guess we won't be frying anything, eh?