ok bought a macbook pro about a 2 weeks ago and i'm finally getting the hang of it. however i don't know how to open several filetypes .rar .wmv .avi (this was weird, none of my AVI files would play) .wma is there a plug in for quickime or something else i can use to play these. and what program would you suggest for .rar's. OT is infatuated w/ rars and i have no way to open them. thank you in advance.