Thanks Allandra. I definitely looked through that thread a few times, and I know that the 4000i is definitely recommended. Has anyone used one or the other and can tell me the difference between the two ie which one should I get? Or does it not matter. I am trying to decide between the two and I am pretty much at a loss as to which one to get. If not, then by default I would get the 4000i since there have been great reviews. But I am jsut curious if one does something that the other doesn't.