Adorama Camera offers the Samsung 1TB 840 EVO Serial ATA 6Gb/s 2.5" Internal SSD, model no. MZ-7TE1T0BW, for $469 with free shipping. (Amazon and MacMall both charge a buck more.) That's $10 under our January mention and the lowest total in-stock price we could find by $40. It features read speeds of up to 540MB/s and write speeds of up to 520MB/s.