Samsung's CES blitz included a tease of five new camcorders, but precious little in the way of launch details. Some of the mystery has ended, as two of the camcorders -- the QF20 and W300 -- are at last hitting US stores. The QF20 caters to the Internet crowd and, for $350, will let you upload your 20x-zoomed 1080p videos straight to Facebook, Picasa or YouTube without thrusting a computer into the process. If you're more concerned about your camera surviving a rafting trip than producing viral videos, the W300 will