We all know that water and electronics don't mix, yet we also want to bring our MP3 player along on a run in the rain or get that cool picture by the pool or take a cell phone along while wading at the beach. And all is well and good until one of these devices gets wet or, even worse, takes a dip.

But what would normally be a wasted piece of wet electronics -- or an anxious check of the water-damage clause of a product's warranty -- can be a ray of hope with what's known as the Bheestie Bag ($20). Its water-absorbing beads will dry out cameras, cell phones, MP3 players or any other gadget that has gotten wet, and it can possibly save electronics that have become completely immersed.

Computers are to music today what a hi-fi stereo system was in the '70s and '80s, but you never would have dreamed of keeping your entire music collection inside a device that's smaller than a turntable. But the downside is that most consumer-friendly computers are designed to crunch data, not re-create music.

That's not the case with the HP Envy 15 Beats Limited Edition laptop (starting from $2,299.99). It comes packed with music-friendly features such as Beats Audio, a technology developed with rapper/producer Dr. Dre and the Black-Eyed Peas' Will.i.am that improves the sound from the laptop's headphone jack, and comes with a pair of Beats by Dr. Dre high-definition headphones. Also included is Traktor LE  DJ software, and the HP Envy 15 Beats has a 15-inch high-definition display and a metal-etched, matte-black finish for that cool music celeb look.

You may meticulously back up the data on your computer -- all those priceless pictures, documents, movies and memories -- to an external hard drive. But what happens when a disaster like a fire or flood hits your home and all that effort goes up in smoke or gets waterlogged?

The answer is an ioSafe Solo fireproof and waterproof external hard drive. The company yesterday -- on Friday the 13th, naturally -- introduced its largest-capacity disaster-proof data safe yet: a 2TB model ($399). The desktop-size ioSafe is also available in 1.5TB, 1TB and 500GB sizes.

A small, wearable camera developed by Microsoft Research in Cambridge, England, could help those suffering from memory loss piece together their past by automatically taking time-lapsed pictures throughout the day. The SenseCam captures low-resolution digital images approximately twice a minute, which researchers believe can prompt the brain to unlock previous memories for amnesia and Alzheimer's patients.

"The SenseCam is all about recalling a piece of information someone already has," Dr. Emma Berry, a clinical neuropsychologist at Addenbrooke's Hospital in Cambridge, told CNN. Berry has used the SenseCam while working with memory-loss patients.

Because there's more than one way to make phone calls, Plantronics Voyager PRO UC Bluetooth headset ($199.95) works with cell phones and computers. Pair it with a cell phone and it works like any other Bluetooth headset, but it also comes with a USB Bluetooth dongle for use with a VoIP system such as Skype that lets you call from an Internet-connected computer.

The annual SEMA Show in Las Vegas is the trade show for displaying anything and everything that can be added to a car -- from air filters to air fresheners. The automotive aftermarket industry gathers to unveil and gaze at the latest parts and accessories, while automakers and car customizers turn out in droves to display how vehicles can be tricked out with all the stuff.

Cool car gadgets, like the Kiwi MPG from PLX Devices ($89.99) shown above, are always a part of the SEMA Show experience. It's a digital gauge that plugs into the OBD II port of most vehicles made after 1996 and can be mounted anywhere in the interior to show mpg, mpg per trip and dollars of gas consumed at the push of a button. It will also display fuel used, distance traveled, distance to empty, rpm, speed, coolant temperature and more. And if your car displays a "Check Engine" light, the Kiwi MPG can read the engine code and clear it, saving a trip to a mechanic.

With all of the computer peripherals that need a USB connection and portables that require a USB port for power, there never seem to be enough to charge every gadget. That's why Scosche's powerFUZE chargers supply extra USB ports for charging at home as well as in the car.

The powerFUZE chargers come in two basic flavors. The HC12VV shown above ($29.99) is the top-of-the-line version and comes with a home charger that plugs into the wall and a car charger that docks inside it, each with its own USB port. The USB12VM is simply a stand-alone car charger version, while other variations are available that also include an iPod/iPhone sync cable.

Thousands of adults and children are injured each year in what's known as "restart" accidents, when an appliance or power tool is being used and a circuit breaker is tripped or the power goes out, and then the user forgets to switch it off before the power comes back on. SafetyGate is designed to prevent restart accidents and employs technology similar to that required by the Occupational Safety and Health Administration for industrial machinery.

Now that Windows 7 is available, many XP holdouts are looking for a hassle-free way to upgrade to the new Microsoft operating system or move their existing files to a new Windows 7-equipped machine. While switching from Vista is straightforward and Windows 7's Easy Transfer tool will manage the transfer of documents, e-mails, settings and users accounts, it won't move programs.

Enter Laplink's PCMover, which makes the entire process relatively painless. It comes in four versions: PCMover Netbook ($29.95), Home ($39.95), Professional ($59.95) and Upgrade Assistant ($19.95) for in-place upgrades on the same computer.