Considering my rant about water cooling ... drum roll ... I am considering water cooling. My only currently water cooled machine sits here shut off due to failing HDD. The system is 6 or more years old, I think. It has dual Athlons, so what does that tell you? It has been water cooled & OC-ed from the get-go. It also has Windows 2000 installed and I have absolutely no idea where that disk is ... I moved recently. I also need a computer consistent with the hardware that is now supported. I am sooo tired of hearing, "we only test on Intel Xeon computers." My current fast power house is dual Opteron 290s e/w 16 GB RAM. Guts replacing, hopefully that is not considered too graphic, maybe this should be a NC17 rating? But, that is the plan. Reuse the case, it is full size & easy to work in. Of course with the failed drive the only other things that will be kept are fans .... hmmm, the DVD drive is IDE so it depends on whether the new mobo has IDE. For my use, the DVD is only necessary for installs and there isn't much of that for a machine like this. Although the video card may be able to be re-used for a while. To the serious stuff, I will be building around an i7 975 & 12 GB RAM. It will most likely be aggressively overclocked. If not overclocked, then I do need maximum number crunch power. This CPU consistently is at the top SPEC benchmarks and is recognized to be essentially a Xeon ... W3580. Video performance is not so much of a concern as is compatibility. It will start with Windows XP 64. I suspect that Windows 7 will be necessary in about a year because of pressure from developers of the software that I use. The video card may need to be updated in that time, but I don't mind waiting to see how drivers fall out with the new OS. The water cooling has been a good system despite the time consuming occasional maintenance(s). It has dual fans puffing thru the rear mounted radiator, so CPU heat is completely expelled. It does have a side panel fan & front mount & they are pretty quiet. I am thinking that since any video card will not be too taxxed that the RAM & chipset will be air cooled adequately. So, now I am looking for a new CPU cooling block. What seems to float to the top (that reminds me of a bad joke) is the Heatkiller 3.0. I will keep the pump & radiator because they are high flow and those items get a little pricey. Therefore worth keeping. I know that there are few WC-ers/OC-ers out there that have looked around at the WC options as well as thought about the amount of heat coming off any i7. I'm just looking for opinions ... and I know that there are plenty of those ... flame me or not. I'm cool.