Thanks m8 for your answer. I wish you had some piccies as I don't quite understand the need for a slot for the capilary tube. But well. I really don't have an idea of how big this thing is and I wish I could see that in a case the size of the Lian Li PC7x. Mine is also really cramped because of the double watercooling circuit I put in (2 pumps, 2 rads, 3 wblocks) But Of course, I'll be able to get rid of the CPU dedicated watercooling circuit. But I'll keep the one for my GC and chipset.
I saw you went for a PC65 for your Prommy. Was it because integration is easier?