Here in Sydney with a mate who's got 3 x 3TB WD Caviar Reds all set to go, but there's not a motherboard in the house that'll support them.
So I'm hoping you can recommend an enclosure to put them in.  Preferably not a NAS as that'll get pricey but if that's what it takes....

Alternatively, the intended mobo was an ASUS PQ5 Deluxe if anyone's got any workarounds.  Have updated bios but no joy.