I am new to Macs and I'm not sure I fully understand the Ichat application. I already have an AOL IM account which I have configured to use for Ichat, but I think there is more to it. I'm not sure what Bonjour is. Is that another service like AOL IM? I thought that maybe Ichat could be configured to be used for both Yahoo IM and AOL as well as other chat clients, but I'm not sure. Is it more for use with other Ichat clients? Thanks!