A general reocommendation would be to go for the Pentium-M based laptops. These CPUs only put out around 30w of heat, so less cooling is needed (thus, less noise).
Just a heads up on the laptop issue, yes we build them here at ARM Systems. The good news is we are coming out with a line of quiet notebooks and we are currently refining our them for our StealthPC family of systems. Since they are still in development I'll give the first few customers a good discount while we sort out the finer points. They are PentiumM based and at their present state of R&D are pretty quiet and are about 80% of where I want them to be noise-wise.
Being based upon PentiumM (Centrino Platform) they do cost more than P4 based models, but after having worked with so many various laptop designs in the past 6 months in our research I honestly believe the Centrino platform is worth the extra $ when considering noise vs. performance and other factors. My prototype StealthPC notebook is a 1.6GHz model and I have been road testing it as my primary PC while we do the research, it's quiet now and we are still working on quieting it down even more before final product release.
And for those Folders@Home out there, you know who you are
, even though I am using this notebook everyday lately for my work (and I am a serious power user with dual displays and lots of apps open) I am getting 12 F@H WU's a week out of this baby!
Once our StealthPC notebooks are officially released they will appear on our online EZ Configurator in the StealthPC family of systems, but in the meanwhile you can work with us directly on a case by case basis. So, if anyone is interested, just reply here or get in touch with me at the shop and we'll see what we can come up with for you.
Execute FOLDING sub-routine: Fold... Fold... Fold...