Mac Sales offers the OWC Neptune 240GB Serial ATA 6Gb/s 2.5" Internal SSD, model no. SSD7N6G240, for $62 plus $1.99 for shipping. That's the lowest total price we could find by $16. It features internal speeds up to 511 MB/s.

Also available is the OWC Neptune 480GB Serial ATA 6Gb/s 2.5" Internal SSD, model no. OWCSSD7N6G480, for $109 plus $1.99 for shipping. That's the lowest total price we could find by $19. It features internal speeds up to 511 MB/s.