PNY Optima 480GB Solid State Drive (SSD) for $160.49 shipped after applying coupon code NAF140671 and a $20 rebate. Here is a screenshot for before the rebate reference. It features up to 510MB/s read speed and up to 320MB/s write speed. The power consumption is also rated as low as 0.1W when it is idle. Most places have it for about $189.