Looking to replace my old drive that gave up the ghost.

Has anyone used one of these? Are these faster drives worth the cost for the speed difference? I don't require a ton of space. I was doing fine on my old 80 gig drive, so I could manage with one of the 70 gig WD Raptor drives. I'm just trying to figure out whether the cost difference is worth it. I'd certainly like a speed boost if there's one to be had.

Any links to reviews, etc..would be appreciated as well.

EDIT: Am currently reading this review on Tom's Hardware.