Hey everyone. I've been lurking around here soaking up as much knowledge as I can find as my buddy and I prepare for our elk hunt later this year. This site seems to have an enormous amount of resources and helpful people that regularly contribute. One question I have is: what mapping software do most people use for their GPS? I have a Garmin Oregon 450 and would like to download a 1:24,000 topo map that I can use in conjunction with my USGS paper map. I would prefer a map I can mess around with on my computer (add points and trails) and be able to move that info to my GPS. Thanks in advance.