Toughbooks are awesome. I've used several CF-19s over the years for geologic mapping, and they're excellent though a little heavy. The rubberized keyboard kind

Toughbooks are awesome. I've used several CF-19s over the years for geologic mapping, and they're excellent though a little heavy. The rubberized keyboard kind of sucks and the one I have now has a backlit keyboard which is great for working in the tent at night, but could be a point of failure if you use it in heavy rain. The integrated GPS receivers are quite nice for mapping as well as navigation. It's cool having the geologic map open in QGIS with the little arrow showing you where you are as you drive. If, you know, you're in to that sort of thing.