I was looking at the processes in my Activity Monitor, and there seem to be several that are unecessary (such as iTunes Helper). Furthermore there are some that I don't know much about such as aped, ATTServer, mdimport, Microsoft AU Daemon, and pbs. Does anyone know what these are, if they are important, and how I can prevent a process from starting automatically, cause some of them take up valuable memory. Any help/advice is appreciated! Thanks.