I have a new article called "23 Tips for Buying the Best HDTV" (or computer monitor) that has been very well received - surprised me by making the front page of digg.com. The title and content seem ideal for this forum. Note that it is designed for a broad range of audiences so many of the entries might seem obvious.
http://www.maximumpc.com/article/features/how_buy_right_hdtv
http://www.maximumpc.com/article/features/how_buy_right_hdtv