I've been building blocks since 2006
I would post up other pictures but there on my server at my student home atm.
Say, i am an old hand at all this chap!
Also like to note that as long as the waterblock can cover what needs to be covered, then its only the internal surface area required. If the flow rate is low, then a large cavity inside the block is necessary to transfer the heat energy. Higher flow rates allow the reduction of internal volume, as the water molecules don't need very long to absorb the heat energy in the reduced volume of the block.
I shall gladly back this up with my degree in design which includes hydraulic design.
Project log Mocha70
Workstation: Q6600, DFI P45-T2RS Plus, 8GB Reaper HPC, Quadro FX3450, 60Gb Vertex 2
Game: i7 930, GA-X58-USB3, 12GB Kingston, GTX280, 1Tb Seagate, WC