Cheers 
Air is almost always cheaper, and can generally be quiet enough. Keeping sli gtx580s quiet on air cooling will be a bit of a challenge though. The best general solution I've seen recommended is to get long monitor, ethernet and usb cables and put the computer in a different room entirely

Air is almost always cheaper, and can generally be quiet enough. Keeping sli gtx580s quiet on air cooling will be a bit of a challenge though. The best general solution I've seen recommended is to get long monitor, ethernet and usb cables and put the computer in a different room entirely