I currently use the Sony Alpha NEX-6; I use it with two lenses: the 16-50mm retractable zoom lens, which is very light and still offers a reasonable zoom, perfect for hiking and landscape photography; the 18-200mm zoom lens, perfect whenever a higher zoom is necessary. Before that, I used the Nikon D80, together with the Nikon 18-200mm VR lens: a bit heavy, but highly versatile. I hardly ever use a tripod, as I prefer traveling light and taking pictures on the move.
I enjoy visiting and taking pictures of the American Southwest, particularly Northern Arizona and Southern Utah. I consider it to be a magnificent area, worth visiting over and over -- there is nothing equivalent in France where I grew up! I also enjoy mountains, especially in summer: nothing beats a hike to an alpine lake.