The TV advert for Tom Tom may drive you round the bend, but the gadget itself is designed to ensure you get to your correct destination with the minimum of fuss.

The key to the success of the T0m Tom sat nav range is the user-friendly nature of the products as well as their dependability - and the Go 710 is no exception.

Address hunting and standard operation is simple, meaning that you aren't reduced to tapping in new information every other mile. Setting up a Bluetooth connection with your mobile for handsfree calling is also straightforward and can be achieved by even the least technologically savvy of people.

The 710 has an extra wide 4" LCD touchscreen for fingertip control and comes equipped with UK and

European TeleAtlas mapping for door-to-door

navigation throughout the whole of Western Europe.

Extras include downloadable weather, traffic and speed camera data to help avoid the pitfalls of modern driving and the ability to control an iPod through the touchscreen and listen to it via the speaker.

The unit also has more than 50 different voices to choose from, so the user will be guided to their destination in as stress-free a

manner as possible.

Garmin Nuvi 660, £390

The sleek, silver Garmin Nuvi 660 looks the business and has some pretty neat features to boot. You can unplug it and use it as a

portable music player, or take advantage of the city guides and foreign language phrasebook.

Navman N60i, £350

The N60i combines innovation - it has an integrated digital camera - with style and ease of use. It is smaller and lighter than its predecessor, and features a large high resolution screen that makes its maps incredibly easy to read.

Road Angel Navigator 6000, £250

The trusty Road Angel has been guiding drivers through the speed camera maze and pointing out accident blackspots for a while now, so it makes sense to combine it with sat nav. And it looks very good, too.