Yikes! That聮s a long laundry list. But I think we can take care of most of it聟save for the music and the tent parts.
Garmin Edge 705 GPS

You聮re best bet probably is going to be the Garmin Edge 705 (about $540; garmin.com). It聮s a bicycle-oriented GPS/mapping unit that has quite a long list of features. It will track your location, of course, and handle GPS chores such as marking waypoints. But it also tracks speed (and average speed over a course), distance, time, altitude, ascent and descent, and more. Plus it watches heart rate and calculates calories burned.
It also maps. The 705 comes with a decent baseline U.S. map (roads and landmarks), plus you can add a wide range of other maps, such as national parks topos, through the unit聮s microSD slot. And the color screen gives you a good image.
The 705 is designed for bicycling, but works fine as a hiking unit. Alas, it won聮t play music.
If the price is a bit much, Garmin聮s 305 tracks location, measures speed, time, and other parameters, handles altitude, and tracks heart rate and calories burned. It doesn聮t have the mapping capabilities of the 705. But when in the world have you been truly 聯lost?”
The 2008 Winter 国产吃瓜黑料 Buyer聮s Guide is now online. From snow sports to trail-running to camping, get reviews of more than 300 new gear must-haves.