i'm posting this from a new box i got at pogolinux.com that i'm REALLY happy with. it resembles your description, except it has only one 60G drive. asus mb, 256m ram, 60g ata100 (in a removable bay for easy swap), nice case - easy acces and plenty of ventilation.
it's sweet - nice components - and a buddy of mine BUILT a similar system for more than it cost me to buy it from them. go check out their $999 special - i think it's called the althura or something similar - you won't regret it. upgrade it a little bit, and they'll ship it to ya already built.
if nothing else, it's a good place to get a starter list of components.
and no, i don't work for 'em