I know this is way off topic - but there is a good reason most servers use Xeon's and ECC ram... it's called reliability.
Sure, I understand that perhaps for what you want to do, that combination doesn't work very well, but don't diss hosting companies for using something reliable for services that need to be... well... reliable

i can understand enterprise grade HDD's and such for regular business use
not ECC RAM
it doesn't have anything to do with what I want to do, it has to do with how often failure of RAM causes data loss. i have not had it happen once, since my first PC/XT in '87