http://www.househacker.com/ househacker/tags/electronics Kill-a-Watt, the Watts-Up electricity monitor sits between the device whose energy you would like to track and a wall outlet. Both devices present you with a handy display of power comsumption, but the Watts-Up Pro (not the standard) has a USB interface, which allows you to download the stored data onto your PC for further analysis. The data can also be exported to Word or Excel. Conveniently, the Watts-Up displays the cost, in dollars and cents, on the unit's LCD screen.

See also:

Watts-Up and Kill-a-Watt at Amazon.com
The Gadgeteer's review of the Kill-a-Watt
]]> http://www.househacker.com/permanent/Watts-Up-Electricity-Consumption-Tracker top 20 overall projectors.]]> http://www.househacker.com/permanent/Find-a-Home-Theatre-Projector-with-this-Exhaustive-Database ready made wireless music player, you can build your own out of some off the shelf (the shelf being ebay, usually) parts and some shell scripts, as Nathan True did. Luckily for us, Nathan has provided a nice step-by-step walk through of the process. If you're not afraid of some hardware work and elastic bands(!), then give it a go and help bring some harmony back to your home audio world.

via Engadget]]> http://www.househacker.com/permanent/DIY-Wireless-Music-Player
via Metafilter]]> http://www.househacker.com/permanent/Possibly-the-World's-Most-Connected-House
The PowerSquid is a power bar that will actually allow you to utilise all 5 of its outlets, regardless of the size of any attached power adapters, thanks to its unique, power distributing tentacles. Pure genius for like $12.99.]]> http://www.househacker.com/permanent/PowerSquid-Electrical-Outlet-Multiplier
via digg]]> http://www.househacker.com/permanent/Extend-the-Range-of-your-Garage-Door-Opener POTS system to your VOIP system, you may be interested in this DIY project that walks you through the creation of a telephone-to-VOIP adapter for your wired or cordless phones. From the site:

Just imagine: You can walk with your wireless phone chatting with Skype friends for free, you can make free call to your mom if she is connected to the Internet...Skype wireless phones are expensive, VoIP adapters cost ~$60, but you can make it for free if your have details.. from old TV, Radio or other electronics.

]]> http://www.househacker.com/permanent/Make-Your-Own-Skype-Phone-Adapter Kill-A-Watt (heh) electricity meter. Plug in any piece of equipment and allow it to project the cost of running the device for up to a year. Until smart energy meters get a foothold in municipalities, devices like this will have to do.]]> http://www.househacker.com/permanent/KillaWatt-Energy-Consumption-Meter Electronic House has a nice slideshow of their product of the year picks. Selections include a nice variety of HDTVs, audio components, projectors and home automation toys. The Electronic House guys sure seem to know how to live.]]> http://www.househacker.com/permanent/Electronic-House-Products-of-the-Year-Gallery