I'm close to buying a flat panel HD TV (within 6 months) and I need some basic advice. The offerings now at some of the big box stores (Futureshop/BestBuy) are beginning to come down to my price range - less than $800 - and I can see the light at the end of the tunnel. The least expensive ones (LCD) are the 720p models with the 1080i/1080p being at the top end. What I need to know is...should I spring for the 720p models or wait until the 1080 models get even cheaper? Will the 720p be good enough for SD DVD's and a satellite HD feed or will I even be able to tell the difference? Thanks.