I need a computer that will allow me to live stream nature cameras, record video of same, process/convert the video from one format to another and work on a movie making program without having to worry about overloading my computer. I currently have a desktop - vista home premium, AMD Athlon 64 x2 dual core 5600+ 2.85 GHz , 4 GB memory and run into frequent freezing and Flash crashes. Is there such a computer that will meet these needs or am I living in a dreamworld?