Best MacBook Air alternatives

Sony Vaio Z
Sony's 13.1-inch emaciated slab of tech will annihilate your bank funds, but its specs – 1600x900 screen, Intel Core i7 CPU, 256GB SSD, 8GB RAM and AMD Radeon graphics – mean it'll be totally worth the purchase. Best of all, it's only 16.5mm thin. Throw in a Blu-ray drive, Thunderbolt, and the ability to hook it up to four external monitors via HDMI or VGA and you're faced with one desirable bit of computing kit.