Best GPS Logger? w/ NEX-6

Just picked up a NEX-6 and am looking for a rugged, reliable GPS logging unit to add geotags to my photos. Camera will be used on a fair amount of trips and I would like to be able to accurately tag the pictures. I also use a canon sx200IS point & shoot quite a bit as well for more portability.

Fairly new to the enthusiast/semi-advanced camera scene, and so far my searches have not turned up much current info. It is my understanding that the device should be anywhere from $50-$150 depending on the unit?

Selling points are small, reliable, good signal, and be a bit rugged (lots of hiking, snowboarding, mountain biking, etc).

Thanks