Thanks a lot guys - full blast fans it shall be.
And now that I am no longer worried about that, maybe I will finally start playing with the voltage and overclock these puppies - that's where the Cayman architecture really shines, from what I hear, overclocking.
I figure if I can keep it at 70-75 degrees @ 925/1395 with stock voltage and 50% fans, I should be able go ahead and take them on up to 950/1450 like everyone else.
Thanks!