I have been reading countless hours about digital SLR's on the internet over the past several weeks. I often feel like shooting myself in the head and putting myself out of misery. I have made up my mind and changed it countless times. Here is what I am leaning towards now; a pentax k-7. One of the main selling points for me is the "weather sealing." If I buy an SLR I plan on using it, which means 2-3 days a week on the river, in the mountains, going up and down trails, etc. Does anyone have any experience with these? This will be my first SLR camera. I was wanting to get the pentax k-r or k-x since they are a little more begginer oriented, but they do not seem to be weather proofed like the k-7. After the camera question, if you are a SLR packing fisherman/backpacker, which lenses do you find meet your needs best for the photography your doing and the need for somewhat lightweight equipment? I am considering fixed focal length lenses and that is why I asked the last question. Any help would be greatly appreciated.