I am getting an Xraid (Xserve RAID I guess as its properly called) and I am curious what I should do with it. I am not yet sure on the specs which I assume will influence its capabilities greatly, but I am curious to know if anyone here has used an Xraid before, and can offer guidance on what types of hard drives they accept, etc. If I recall correctly the current Xserve line requires special Apple only hard drives. The one I am getting (for free so I can't be picky) has 5x100GB hard drives in it currently, and I would gladly expand as long as it won't cost an arm and both legs. Any ideas?