I've read through so many of these threads and still feel no closer to an answer so I figured I'd just ask. In a couple weeks I will be heading out, riding the TAT with lots of detours. The detours will take me on both main highways as well as a bunch of singletrack routes and tracks I've been downloading. I will have my notebook computer with Google Earth, Mapsource, and Basecamp on it, and I want to be able to easily load this routes and tracks on to my GPS and ride with little to no drama. After reading a ride report where a guy was using his phone and submerged it during one of his first water crossings, I've decided I don't want to use my phone (I also can't read my phone's display in bright sunlight), and I want my GPS to be waterproof as I will probably be riding regardless of thunderstorms or rain. I don't care about bluetooth or being able to hear the directions as long as I can see the screen easily in bright sun and dusty conditions. I don't want to spend a lot of money, but it seems I'm probably going to have to. I currently have a pair of Garmin Nuvis (one for my bike, one for my car) and it seems that the USB-mini jack becomes extremely fickle after riding bumpy offroad sections. I opened up one of them and hardwired my own power supply directly to the battery, but I'd prefer not to have to do that again. I also ride up to 16 hours a day, so I do not want to be changing batteries. Please suggest what model I should get - and also why you suggest that. Many thanks.