If Apple's iPod is the Goliath of digital audio players, what does that make the Nomad Jukebox Zen Xtra? Possibly David, with a 60-gigabyte slingshot. Other hard-drive-based pocket players have come out (like Dell and Samsung), but for our money, the Zen Xtra has the edge. For $400, it has more storage (the largest-capacity iPod holds 40 gigabytes) and a 14-hour battery (the iPod's is 8), and it sounds just as fabulous. It's a little heavier than an iPod (7.9 ounces), but for serious techies, it's worth the weight. www.nomadworld.com.