I'm posting this here as a response to a comment in a thread in the project logs forum and didn't want to go off topic. I mentioned that I was going to be making some computers for my boat and soulmage recommended Pelican. Those are really nice, but expensive. My boat is large enough and enclosed (See My Boats on my Home Page in my sig) so I don't need anything that rugged. Here's my thinking: The computers will be mounted inside, normally A/C or heated. A 36' boat is pretty stable, but can bounce around, so I'll use laptop drives. I got LOADS of 12v power, so 12v is the way to go. Don't have to run the genset that way. And they'll work even if the inverter dies for some reason. There are times the A/C is not running and the interior can get really hot (120 can happen), so I'm thinking of a slightly different kind of watercooling: Use a saltwater/freshwater heat exchanger, probably from a small marine generator. This means the cooling water will often be below ambient temperature, so condensation will need to be dealt with. I'll need to watercool just about every component. Probably make a combination of heatsinks and heatpipes running to water blocks for the unusual places. I don't have much experience with this, so I figure I'll use a temperature probe to check the MB and other components for all the heat generating places. Needs: The biggest thing I run on the PC on the boat is the marine navigation software. It supports dual monitors and has 3D graphics. You can easily have 6 windows open simultaneously showing different charts scrolling, some in 3D, some having more than one type of display merged together, including radar, satellite photos, vector and raster charts. Basically I need a pretty fast CPU and a pretty good graphics card. Well, I don't have time to lay it all out, but this is a start. Anyone in here ever do something like this before? Ideas? Problems? Flames? When I start these, I'll post in the log forum so you can all see. (Might be a year before I start). I say "these", there will be 2 identical navigation PCs (one is backup), a vessel management PC and then at least 1 Linux machine for normal use.