Thanks everyone for your replies. Alot of really good information and points to ponder.
Here is what I ended up doing. I decided for the price, I would be better off with a flat panel. I spoke with several colleagues at work and their experiences with RPTV (bulbs, SSE, etc). The majority lamented they would have gone flat panel, but at the time of their purchase it was cost prohibitive. At this time, flat panel is not cost prohibitive and the technology is only getting better.
Now here is the real suprise. Instead of LCD, I went plasma. I exchanged the Sony KDF-50E2000 for the Panasonic TH-50PX60U.
Why? Well, picture quality. Without sounding like a broken record from other posts, I just liked the picture quality of the plasma over the LCD. I did a side by side, and maybe unfair comparison, with a Sony 1080p LCD thinking the Sony would blow away the Panny. To my suprise, I felt the plasma was a tad better. Too me, the LCD lighting appeared uneven. The LCD blacks were not as good. The refresh rate didn't keep up as well. On the LCD, I just felt like I was watching a movie on my Samsung 19" LCD monitor on my computer. OK, I know that's an exaggeration, but you get the idea!! ;-)
It's a little deceiving, because if you only pay attention to the vivid picture of an LCD, you think it's the best. But, when you realy concentrate on picture quality, the plasma is superior. The Panny plasma simply looked as good as a tube TV. Beauty is in the eye of the beholder and this is what I saw. Not to say I wouldn't have been satisfied with an LCD. I sure would have! However, for me, I just liked the plasma better. My brother-in-law and my son who were with me agreed. I think I would have gotten an LCD if I were shopping for a 37" or less flat panel.
Many of you may be wondering....if this guy was worried about green haze on the SXRD, isn't he worried about burn in on the plasma??? Well, I agree with rockytt if you focus on the negative posts, you'll never buy anything. Burn in was a consideration, but after much research and knowledge, I feel I can avoid this issue.
I'm suprised at the amount of people who suggest 14 feet is too far for 50" and I should go 70" or higher. 14' is the most we would be sitting. Of course, kids tend to sit on the floor in front of you, so they will be even closer (9' to 12' or less). I couldn't imagine getting a TV larger than 50". I am a believer that bigger is better, but I'm very happy with 50". After all, I'm going from a 15 year old 32" tube. That's not a bad upgrade.

Besides, my wife would kill me if I showed up with anything larger. ;-)
Thanks again for your insight.