I have access to lots of awesome machines where I work. EDM's Mills, Lathes etc... I have a large chunk of aircraft grade aluminum. I do not have copper nor the additional money for buying copper. I was wondering what the base dimension of the waterblock should be mounting it to a processor? The first test subject will be a OC P4 Northwood. If things work well it will then make it to a trial run on my I7-920. Just dont know how thick I should make the base of it... I was thinking like .075" but not sure. Any thoughts?