newegg offers the Crucial M4 128GB 2.5" Serial ATA 6Gb/s Internal Solid State Drive (SSD), model no. CT128M4SSD2, for $184.99. With free shipping, that's $1.44/GB and the lowest total price we could find by $5, although we saw it for $5 less in October, since expired. It features read speeds of up to 415MB/s and write speeds of up to 175MB/s.