To kick off our latest round of heatsink tests, we decided to look at the default option, supplied by Intel with all of its new processors.

Disappointingly, it only managed to score a single star, suggesting you might want to have a look at some of our other models.

On test today is the excellent Thermalright IFX-14, along with three heatsinks from Zalman's 'Computer Noise Prevention System' line.

Unfortunately, neither the CNPS 8700 NT, the CNPS 9300 AT nor the CNPS 9700 NT is particularly quiet!

> Product Survey: CPU Heatsinks

After our look at Internal Hard Drives, we've launched a new Product Survey on DigitalVersus for External Hard Drives.

The six that we're looking at today all sell for less than 100 euros (125 USD / 85 GBP) and come in two different formats.

First up, four of them are ultra-portable pocket drives with 2.5'' disks and no external power supply--but they all still manage to pack in 250 GB:

• Freecom Tough Drive Pro USB-FireWire 400 250 GB

• Iomega eGo USB 2.0 250 GB

• Memup Kwest Evolution 2.5'' 250 GB

• Transcend StoreJet 2.5'' SATA 250 GB

The last two are bigger 3.5'' drives more suited to sit on your desktop and have more storage space to boot--500 GB each:

• Freecom Hard Drive 500 GB

• Memup Kwest Evolution 3.5'' 500 GB

Today, we've added a choice of ten different televisions to our list of best-buys this Christmas.

We've split our guide into two different sections using the fairly arbitrary line of 40'', but a lot of the screens we look at come in a range of different sizes, so why not check them all out?

Once again, we've picked our favorites, but you can read our whole collection of reviews in four separate Product Surveys:

• Product Survey:29'' and smaller TV

• Product Survey:30 to 39'' TVs

• Product Survey: 40'' to 49'' TVs

• Product Survey: 50'' and larger TVs

And of course, they're all in the Product Face-Off.

> Christmas Gift Guide 2008