Released just this fall, the Galileo is the coolest new computer we've seen this year and it's loaded with so many features that your pulse may quicken just putting it on--and you'll know that thanks to the built-in heart-rate monitor. It offers wireless air-integration with as many as four high-pressure transmitters (up to 4,350 psi). It tracks three nitrox mixes up to 100 percent, and calculates true remaining bottom time, which takes into account a combination of factors, including tank pressure, breathing rate, depth and upcoming decompression obligations. Its memory lets you store your most recent 100 hours of dive information, and its logbook stores six pages of information for each dive, including two graphical charts. As if this wasn't enough, the Galileo has the coolest, most useful digital compass we've ever seen on a dive computer. This could be love. $1,980. www.scubapro.com.