i think this is the cheapest ive seen for a TS-451 QNAP $389
even better deal if you can pick up in store
http://frys.com/product/8326247?site=sr:SEARCH:MAIN_RSLT_PG
even better deal if you can pick up in store
http://frys.com/product/8326247?site=sr:SEARCH:MAIN_RSLT_PG