Just wondering if it would be possible to passively cool my gtx280? 
I intend to be using using a silverstone fortress ft02b-w http://www.overclockers.co.uk/showproduct.php?prodid=CA-067-SV&groupid=701&catid=7&subcat=1092
and a Thermalright HR-03 GTX http://www.overclockers.co.uk/showproduct.php?prodid=HS-077-TR&groupid=701&catid=57&subcat=787
I'm hoping there will be enough airflow from the bottom 180mm fans to forego putting a 120mm fan on the gpu cooler, but if I have to ill put one facing up towards the top of the case
reason I'm trying this is my overclocked q6600 and gtx280 combo are still going strong, and I reckon they have some life in them yet, (they have been best value for money pc items I've ever bought) but the gtx fan is damned annoying when you start gaming

I intend to be using using a silverstone fortress ft02b-w http://www.overclockers.co.uk/showproduct.php?prodid=CA-067-SV&groupid=701&catid=7&subcat=1092
and a Thermalright HR-03 GTX http://www.overclockers.co.uk/showproduct.php?prodid=HS-077-TR&groupid=701&catid=57&subcat=787
I'm hoping there will be enough airflow from the bottom 180mm fans to forego putting a 120mm fan on the gpu cooler, but if I have to ill put one facing up towards the top of the case
reason I'm trying this is my overclocked q6600 and gtx280 combo are still going strong, and I reckon they have some life in them yet, (they have been best value for money pc items I've ever bought) but the gtx fan is damned annoying when you start gaming
, didn't realise the mk13 was as good as it seems
)