I have to say Screencast-0-Matic is the best, it lags a TON but is better than any others. i use screencast-o-matic but its really laggy, if your gonna do a survival series, dont do screencast-o-matic, it'll lag out. also it depends on what your using such as Windows, Mac OS X. if you do have mac, do screencast-o-matic, if not use quicktime player.
