newegg offers the OCZ Vertex 4 64GB 2.5" Serial ATA 6Gb/s Internal Solid State Drive, model no. VTX4-25SAT3-64G, for $64.99. This $15 mail-in rebate drops it to $49.99. With free shipping, that's $0.78/GB and the lowest total price we could find by $15. This drive features read speeds of up to 460MB/s and write speeds of up to 220MB/s. Deal ends September 5.