Quad-core makes it powerful and good value at the price. Noise and stability suffer though.

Choosing a CPU for your PC isn’t an easy task. Here are our picks for budget, mid-range and high-end systems.

Quad core at this price is fantastic, but it’s not as fast as it should be.

A fast, quiet, good-looking PC that's great value.

Fantastic hardware. The GPS software is mediocre, but you can buy your own.

Another big name brand PC gets a cutting-edge, all-format, high-def optical drive capable of playing Blu-ray and HD DVD.

Fantastic design and highly-configurable power make this XPS useful, desirable and good value.

Big and heavy but the features this 3G phone sports are phenomenal.

When we first reviewed the hw6515, we were bowled over by how much HP has managed to cram into such a small device.

If you’re not bothered about 3G and want a fully-featured WM6 device it makes a bargain choice, though you can save even more cash with Palm’s Centro.

Custom design watercooling and some judicious overclocking make for a showstopping performance and price.

Great performance, fantastic value and near silent operation makes this our new A-List mid-range PC winner.

A monster PC thanks to some very high-end components. But it’s noisy and expensive.

A minor update to the W800i, this phone boasts a wealth of features and an intuitive interface.

Expensive, but the features are packed in. Just note the lack of Wi-Fi and some strong iPaq competition.

A very fast computer with decent features at a great price, whether for gaming or an all-round powerhouse

All the current chipsets from both the big gaming guns – ATi and Nvidia – tested, reviewed and rated.