Fry's offers the Samsung 256GB 840 Pro Series Serial ATA 6Gb/s 2.5" MLC Internal SSD, model no. MZ-7PD256BW, for $149.93 with free shipping. That's pennies below last month's mention and the lowest total price we could find by $5, outside of the deal below. It features read speeds of up to 540MB/s and write speeds of up to 520MB/s.
A close price: Adorama offers it for pennies more.