Yes! I didn't consider the possibility that the water cooled unit might one day leak?!? That could prove problematic. I am getting to understand more about better fan units and more of them from this thread, now. I've always had several fans feeding the air flow intakes on the outside of the pc box, and it does seem to help - but it might not be a good option, possibly also problematic in nature?!? I've found it amazing that with my present weeny 4gigs Ram, 40gigs are now mentioned. Blimey! And yes, those choices one has to make in picking out the units for the self build, must drive one insane. I think I'd end up with choices priced at around $100,000, knowing me. I looked at one such site yesterday, and there were around a hundred choices for each componant, and it took me several hours finding and reading revues for just a few of them. I can now see and understand that notion that stock purchased systems/set-ups are designed to be useless in several years, so that you/we have to cough up yet again in this throw away world of today. Someone's making big bucks out of it - and I'll wager it isn't us! I was looking at those elusive higher cores of 12 and up, and the costs at, say, $3000 or thereabouts and ever upwards - wow! The full size tower and its leaving you with lots of options and upgrade capability looks a firm idea, from where I'm sitting... And fans controlled by dials on the outside of the case - love it to death!!!  Terrific! Thanks again all. I'm researching my rear end off right now, thanks your help thus far......     Tony D