"Good price @ Costco. $99 for 2 TB"2.5 starson by Alien100
Pros: Large storage capacity, easy hookup
Cons: Slows system operation down. Verified this by unplugging drive and monitoring system speed
Summary: maybe the firewire interface or USB 3.0 would speed up laptop speed but you have to purchase that separately. Have talked with technicians who where professional but not to helpful.