Fry's Electronics offers the Western Digital 500GB Scorpio Blue 2.5" Serial ATA 3Gb/s Internal Laptop Hard Drive, model no. WD5000BEVTRTL, for $49 plus $2.99 for shipping ($0.10/GB). That's the lowest total price we could find for a similar model by $9 and one of the least expensive 500GB internal laptop hard drives we've seen. Sales tax is added where applicable. This laptop hard drive runs at 5400 rpm and features an 8MB cache.