used 655 is plenty. just get rad big enough to hold lots of fans.. .yateloons are GREAT for price/performance. if noise is not an issue get the mediums.. if you dont mind a LOT of noise get the high speed yates. you can always get fan controllers later of course
I HATED black ICE rads after my first experience with WCing.. high fin density, means high pressure high speed fans for most effective cooling.. you know what? I ran my core i7 920 with no fans.. .did not make that much of a difference in normal desktop situations
LOAD delta is what all the whohah is about with WCing.. get a few MCR320 swiftech rads for best price performance. build a secon d"case" just to house the rads. I know guys that have 3 or 4 3x120 swiftechs on their core2 setups with low single digit deltas.probably still hit two digits on i7.. .so what? Keep it under 60C and enjoy
Seriously though the norm with watercooling is not about better temps than air cooling (that is rarely the case unless you spend a lot on WCing.) the big benefit of WCing.. is getting the same temps you can with extreme air cooling .. at much much lower decibels IMHO
Yeah its costly. Unless you got a hook up... (sorry dont have the youtube link handy)
You can do alot with second hand parts though and second parts are much cheaper, just be prepared to clean the shit outta them, oh it helps if you make sure the previous user never tried Dyes... those things canker up a WC loop)
Straight distilled. rain it and replace it as often as you want for 99cents a gallon