Thanks to John Gruber for pointing out this article on Tom’s Hardware.As a client of mine pointed out just before I bought my Air, the early SSD drives are not mind bendingly better at saving power than the good seagate spinning disk hard drives. They DO however have a much much much lower failure rate.Average hard drives fail between 1 and three years into usage, Hitachi’s sometimes in the first week, that’s why we supply and install only Seagate hard drives that come with industry leading Five year warranties, meaning that as long as your time machine backups are being kept, your hard drive will be replaced free up till 2013 (when hard drives will be a distant memory