Well since your x300 does have vga out, you can buy an external scan converter that will take your VGA signal and output it to composite (RCA) or Svideo depending on the model you get. As far as hooking it up to your stereo, that's easy. All you have to do is go to radio shack and get a cable that will go from your headphone out jack into your rca inputs on your stereo. I am sure you can pick it up for less than $10. The scan converter will run you between 60 and $100, depending on it's features.