B&H Photo Video has the Iomega 35887 StorCenter ix2 Network Storage Enclosure for $129 - $50 rebate [Exp 12/31] = $79 with free shipping. Features Marvell 6282 1.6GHz CPU, 256MB DDR3 DRAM, and 2 x 3.5" Easy-Swap SATA-II Hard Disk Drive interfaces. Buy.com has it for a buck more after same rebate.
These are the only listed Qualified Hard Drives you can use with this thing:
Seagate 7200 Grenada 1 TB, Model ST1000DM003
Seagate 7200 Grenada 2 TB, Model ST2000DM001
Seagate 7200 Grenada 3 TB, Model ST3000DM001
Hitachi 5400 rpm CoolSpin (Jupiter) 1 TB, Model HDS5C1010CLA382
Hitachi 5400 rpm CoolSpin (Mariner) 2 TB, Model HDS5C3020ALA632
Hitachi 5400 rpm CoolSpin (Mars-K) 3 TB, Model HDS5C3030ALA630
I would pass on this...
#1 I think that's only true if mirroring discs, but not for JBOD's...