Buy.com offers the Samsung 256GB 830 Series SATA III 6Gb/s 2.5" Internal SSD, model no. MZ-7PC256B/WW, for $169.99 with free shipping. (Add it to your cart to see this price.) That's $0.66/GB and the lowest total price we could find by $24, although we saw it for $2 less last week (since expired). It features read speeds of up to 520MB/s and write speeds of up to 400MB/s.