768p vs 1080p

[sewerdog]

Just want to know I am going to buy the Sony 350 Blu-Ray player and was also thinking about an Insignia 50 in Plasma 1080p. The Plasma thread was not real kind to that tv. Someone said he bought a Panasonic 50in Plasma but it is only 768p will the 350 have just as good a picture on that as it would a 1080p set. Both set have good reviews from CNET. The tvs are at best buy and set right next to each other so watching them both at the same time I could see the picture quality both looked pretty good and actually could not see that much difference in the picture but my main concern is the quality of the blu-rays picture and my viewing range is between 7-9 feet. please help getting more confused by the minute