Well built and full of features, this lightweight laptop is perfect for professional users who need good speed and ease of use while on the road.

The VAIO VGN-UX17 is a revolutionary entry into the portable notebook space, offering a fully fledged Windows XP device that is small enough to fit into the palm of your hand. We'd like to see further developments, but it still should appeal to those looking for portability and full PC functionality.

The MacBook Air is a superbly crafted notebook, but this niche product isn't for everyone. Its lack of optical drive, FireWire and Ethernet ports deem it inadequate for power or everyday users. Regardless, it functions well as a secondary device for frequent travellers, or those who require basic, hassle-free computing.

Alienware takes a nice step out of the high-power desktop world into the ultraportable market with the Sentia m3200

The Libretto's miniature size and light weight will attract veterans of the road who want to travel without being encumbered.

The Lenovo 3000 V100 is a good all round notebook that also happens to be fairly small.

A good ultraportable, the U5F offers excellent battery life and solid performance wrapped up in a stylish and attractive package.