Well, if there's something you really want OS X server versions 10.2 through 10.5 for then I suppose it will do as well as anything, but I still question their suitability for any environment outside of a server room. I mean, really, keep in mind that though they may only be 1.75" tall they require 19" by almost *three feet* of horizontal space and you're not supposed to stack anything on top of them. (The upper skin really is just that, a skin, to keep foreign objects from falling into it and direct airflow properly when it's not snuggled in a rack. You also *genuinely* need to keep both the inlet and outlet vents clear of foreign objects.) If you've already got a rack in said basement you're set, I guess, but if not you'll really need to buy one. If all you want is a file server or whatnot you'd probably be better off with a more modern and power-saving solution.