For those of you exploring your Mac with enthusiasm, you can check out the following list of free mac programs that do various handy things: http://lifehacker.com/5826449/lifehacker-pack-for-mac-our-list-of-the-best-free-mac-downloads (I highly recommend VLC (plays a lot of different video files) and Unarchiver (opens compressed files, like .rar; Mac is already equipped to zip and unzip for you, just right click and hit 'compress').