Amazon offers the Samsung 1TB 840 EVO Series Serial ATA 6Gb/s 2.5" Internal SSD, model no. MZ-7TE1T0BW, for $399.99 with free shipping. (Buy.com via Rakuten Shopping charges the same.) That's tied with our mention from earlier this week (which included a $40 Rakuten credit) as the least expensive 1TB SSD we've seen. (It's a current price low for this model by $20.) It features read speeds of up to 540MB/s and write speeds of up to 520MB/s.