I was thinking of getting my sister and HDTV for christmas. She is not a videofile but I thought she might enjoy HD. She has a D* setup that is HD. I don't want to spend a huge amount and noticed the 720p TVs are getting pretty cheap. Any opinions out there about 720p? Should I spend the extra for someone who probably would not notice the difference for 1080p? Also, would you go with Vizio or some other brand?