I have a 733 G4 tower with the nvedia mx2 card and 640ram But I want to upgrade to a faster system. I was thinking about upgrading to a dual processor from Sonnet or Powelogix but its kind of expensive, also would upgrade video card. Is it better to maybe buy a new system or would upgrading my current computer be fine? I want to use programs such as photoshop, Illustrator, Final Cut Pro, Pixels 3d, etc. Please help!