I am recently a new Owner of a 27in Imac which is my first apple PC. I am wanting to change my sound effects on my computer. Is this possible to do on an Imac? For example instead of the sound that happens when you put something in the trash i want to put one of my sounds for it. This is also my first forum post ever I have always just read other post people had questions on. So if I am in the wrong section posting sorry was not sure where to post this question