Bill,
You should do some research on another addicting forum.....AVS Forum, a forum for audio and videophiles. Once there you will have access to a knowledge base that remarkably extensive to say the least. You can go to the Plasma page as well as the LCD and LED pages that will really guide you well.
Essentially, the vast majority of videophiles agree that the finest HD television sets ever made were deemed so because of their outstanding black levels which translate into a jaw dropping picture. Specifically, the Pioneer Elite Kuro plasma TVs have held this honor for years, albeit at a very high price. Only plasma has attained these inky blacks and, although recent LED sets like Samsung and Sony have improved prior dark gray levels offered by LCDs, they can't approach those offered by the best plasmas.
The Pioneer company ceased production of televisions in 2009 to the dismay of the world's videophiles and remaining stock has been swept up. The good news is that the new reigning champion, Panasonic, has purchased the rights to the Kuro technology and hired many of their people so expect the quality to continue and improve. Take a look at the Panasonic V series, this year's just came out and next years' will be Kuro technology. I bought a 54" V10 about 10 months ago and Panasonic Blue Ray player and it is about as good as it gets, absent a Pioneer. It was less than half the price of the Pioneer Kuro for about 5 percent less black level so an outstanding value at around $2,000. Also, the new Panasonic PDP panels were introduced in 2009 and use a small fraction of the energy of all previous plasmas and are nearly as stingy on power consumption as LCD panels. The PDP panels also have a 100,000 hour half life so they are good for years.
For those looking for HDMI cables, the only place to go, as I learned on AVS Forum, is Monoprice.com. The best AV cables made for about 80 percent less than Monster HDMI cables, which are a rip off that is almost criminal. Further, if you are in need of ink jet printer cartridges, you should check out Monoprice.com
Good luck Bill, but next years' Panasonic plasmas will be something definitely worth waiting for if you aren't in a hurry.