Newegg offers the Toshiba Q Series Pro 256GB Serial ATA 6Gb/s 2.5" Internal SSD, model no. HDTS325XZSTA, for $159.99. Apply coupon code "MASTERPASS" and checkout via MasterPass and it drops to $143.99. With free shipping, that's $0.56/GB, tied with our mention from three days ago, and the lowest total price we could find by $16. (Most merchants charge $190 or more.) It features read speeds of up to 554MB/s and write speeds of up to 512MB/s.
Note: In order to redeem the rebate, you'll need to activate the Total Defense software, which involves providing your credit card information. However, you can cancel the service at any time within the first year without any additional charges.