Looks a good price - haven't done any research on this since its in the land of the oz....
Quanta M4600H Ultra-Dense 4U Disk Expansion Unit 60 Bay 2x 6GBPS 60 Trays | eBay
Quanta M4600H Ultra Dense 4U Disk Expansion Unit. 60 bay (3.5 or 2.5" hot plug). (4) Fan modules, 2 rotors in each Fan module. Specialist Suppliers of Second User PCs, Printers and Monitors. (2) 1400W 220VAC.
www.ebay.co.uk