I want to start putting together a decent home theatre, but i want to make sure that i have a great tv to go along with it. I'm in lookin for a 42in plasmas, but i'm curious on the differences of HD ready and HD built in. Is it really necesary to have hd built in to the tv or could you have the same quality with an external hd tuner. Also i'm mostly concerned with external componets such as dvd and the upcoming XBox 360 and PS3, i really dont care about hdtv. So if someone can point me in the right direction and maybe show me a great place that i can get a good deal it would be much appreciated.