Ok, I am planning my new home office, and trying to gel up some of the ideas I had. One thing I know for certain is that I am going to try my hand at building a custom concrete desktop surface. I have studied up on how to do this, and I am pretty handy, so I figure what the heck, right? Well, ever since the purchase of my MBP (I was in the first wave of buyers), heat has been a concern. The MBP is my MAIN machine now. I develop on it, do email and such, cut home videos, etc. It stays on 24x7, and I am pretty much on it all the time. For the most part, it sits plugged into my 20" cinema display on a wooden desk surface. Now, back to the plan. Right now the room is carpet. I plan on tearing that out. I have a friend that owns a contractors surplus place, and will totally hook up a great deal on wood flooring when she gets some in...thats locked. The next piece is the server farm. I currently have 9 computers in this room (1 MBP, 1 PB for my wife, my work laptop, 1 IBM T23 Windows laptop, 1 linux desktop, 3 linux servers, 1 linux IPCop firewall), and 2 more that need to be built. Thats a lot of heat. I want to put the servers in the closet, drop a vent down the wall for AC, and put a Temp Controlled exhaust at the top to exhaust the hot air...this is pretty set too. The final piece is the work surface. My tiny 'L' shapped desk currently has a 20" cinema and MBP, plus a 20" IBM P200 monitor, Dell 610, IBM T23, and KVM on it. Needless to say there is no room. Now, to the plan for the desk. I know I want to do a concrete desktop. I have envisioned it having holes and moldings made for various things. One thing I thought of was some place to sit the MBP to help cool it. The thought is I could put a copper plate, probably just slightly smaller (perhaps 1") than the size of the MBP, in a possition that suits. The plate would be placed into an indentioned area, meant to fit the MBP, and designed in such a way that the rubber feet on the MBP would allow the plate to sit directly on the bottom of the laptop. Now, here is where it gets fuzzy. One thought would be to design a "heat pipe", using one or more solid copper bars to pipe the heat off the plate and away from the lappy, maybe into a finned radiator or something. The other would have a spot molded into the bottom of the plate so that one or more fans could draw the heat off; this has the downside of noise. First thougt is along the adverse effects a conductive metal like copper would have on the MBP. I wouldn't think that it would matter, but I may be wrong. Second issue is finding a place that can provide me a custom sized copper plate, possible with a solid curved copper pipe on the bottom. I do not have much in the way of metal milling equipment, nor do I know how to weld copper, so doing this myself may be a problem. Any thoughts?