While it isn't the first dual-bay enclosure
that we've seen, the Planex
PL-35U2BS is among the first SATAII dual-bay (or "dual-core", if you prefer) enclosures that we've spied. It'll support up to 1TB of storage, by taking a pair of 500GB drives and striping 'em with some RAID 0 action, and will connect to the PC of your choice via USB 2.0. Not enough? The aluminum casing claims to keep your hard drives both thermally and aesthetically cool. That's right: twice the coolness.