Well I'm not in philly but so I don't know what local stores you may have. While the internet might have better deals, I'm a little picky when it comes to bigger items just incase there is a defect and shipping ain't cheap.
So check out the Panasonic Viera 42" 1080p plasma at Best Buy. Its 799.99 and I'm sure you could get the warranty and still be under a 1000.
http://www.bestbuy.com/site/Panasoni...HDTV&cp=1&lp=2
Now HDMI cables, get them off Amazon or monoprice. This is in case you're going HD for something like cable or blu-ray.
If you're feeling brave to go without the warranty, I know Sony has some 3D capable blu-ray player selling for $200.
edit: The protection plan for 4 years is under $200. If you're wanting to keep taxes included under 1000, then the 2 year plan is like 50 cheaper.
Seriously though, the best thing is to go check it out yourself. Some people have different preferences.
edit edit: Best Buy will price match Target and Walmart websites. Use that info wisely.