> Obviously this requires a system which good CPU and memory resources for the amount of package building you do.
I run Gentoo on my atom boxes (netbook, nettop). It works fine. (Anecdotally, better [faster/cooler] than prebuilt distros, perhaps due to -Os -march=atom Could be confirmation bias, though). Just don't expect huge things (kernel, mozilla, LibreOffice) to compile instantly.