If you are looking for Plasma TV Buying Guide, go to PlasmaTVBuyingGuide.com. I have a Panasonic 42" plasma. Since all have similar features, I chose Panasonic over other brands primarily for 5 reasons.
1. Brightness ratio -- 4000:1. Mine was last year model w/ ration of 3000:1, which at the time was the leader in its class.
2. Real Black Drive System. Still the leader in its class.
3. Based on the breakdown testing comparisons of Panasonic and others on PlasmaTVBuyingGuide.com
4. Makes its own glass.
5. Many generations in making plasma. I believe it is currently the 6th generation.
To summarize the answer for your question, 37" Panasonic plasma should meet your $4K budget requirement and your screen size requirement of 42"+/- few inches, if you are in a hurry of getting read for upcoming super bowl.
1. Brightness ratio -- 4000:1. Mine was last year model w/ ration of 3000:1, which at the time was the leader in its class.
2. Real Black Drive System. Still the leader in its class.
3. Based on the breakdown testing comparisons of Panasonic and others on PlasmaTVBuyingGuide.com
4. Makes its own glass.
5. Many generations in making plasma. I believe it is currently the 6th generation.
To summarize the answer for your question, 37" Panasonic plasma should meet your $4K budget requirement and your screen size requirement of 42"+/- few inches, if you are in a hurry of getting read for upcoming super bowl.