Hi I've got a bit of a newbie question. I recently bought the HD add on for the 360 but started to think after I read it's outputs. If the 360 can upscale DVD's to 1080i via the vga does it produce the same quality then as the HD add on does when it upscales the HDDVD's to 1080i? ie, was it worth buying the add on!!? I have a 32" 720p native TV with the 360 resolution set to 1360x768. I'm not too sure about resolutions etc and found the upsacling of DVD's to be pretty impressive but thought I'd get the HD add on to see what it was like. I haven't noticed a huge difference although it could be the set up!