for those that have been asking, my blocks go for $40-50 depending on how you want them designed.
they are the same dimensions has a HD but only 1/2" thick
the barbs are 3/8
the channels are made by cross drilling.
and the barbs come out anywhere you want. the way i have the barbs you can cool TWO hard drives with ONE block
and pricing goes as follows:
$30 for the copper
$2 per barb
$1 per plug
$1 per hole ( this is my profit... not really since its just to pay for drill bits and files...

)
+shipping.
so thats about the cost of a good waterblock, but this thing is 6 times the size of one.... hell you could even use 2 and make a water chiller with pelts!
email me if you need pics.