I can edit normal resolution movies, but when editing HDTV the computer is too slow. I have a 3 GHz Pentium 4 with 2 GB of Dual channel DDR2 memory. I use an nVidia GeForce 6600 graphics card. What would you say are the minimum hardware requirements to edit HDTV+5.1 surrond sound movies with MAGIX Movie Edit Pro 14?