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Power consumption: How much are your gadgets costing you?

With Earth Hour making us aware of the need to conserve electricity, we conduct a real-world test to see just how much our TVs, computers and other home electronics equipment costs to run.

Apple iMac (24-inch, 2.8GHz)

With the same elegant design as its 20-inch, 2.4GHz sibling, the 24-inch, 2.8GHz iMac offers 30 percent more screen area and a modest performance boost.

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Reviews

  • Sony VAIO LT VCG-LT28G

    We're still trying to work out who the target market for the highly expensive LT VAIO is. Design-crazed multimillionaires, perhaps.

  • Apple iMac (20-inch, 2.4GHz)

    With its super-elegant new design and a strong configuration, Apple's new iMac competes with the PC desktop market better than perhaps any previous Mac to date.

  • Apple iMac Core 2 Duo (24-inch, 2.16GHz)

    Other vendors might offer more flexible configurations and better deals on components, and the specter of HD video looms darkly, but the 24-inch iMac's sprawling display and convincingly capable features should set most people's minds at ease.

  • Apple PowerBook G4 (17-inch; 1.67GHz)

    The 17-inch PowerBook G4 delivers a competitive set of features, a great software package, good battery life, and style in spades, but you can find plenty of less expensive options out there.

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The Explain Series