Projectors?

Any of the non-1080p projectors from companies like Benq would fit the bill (look at the projector central website, real informative), can run your video sources into your receiver, if it has built-in video switching, and out to your projector, I run all you have minus the video game, but that should be an easy hook-up.
The sports games in 1080i HD look great , superbowl party?

For that kind of money you'll probably be looking at 720p. You might want to stay away from used, as the bulbs may have worn and are expensive considering your budget, dust build up and alignment issues may be a concern. Throw distance, ambient light, noise,and ventilation are real considerations. Each technolgy has their pros and cons, the final decision will probably be due to personal preference. Panasonic and Sanyo amongst others have offered good values.

I own an infocus X1 which can be purchased used for 200-500$ these days (with or without bulbs).
New bulbs run about 250$ and are said to last 3k hours.
I've had my current bulb running for 4k hours and apart from a lumen loss its still going strong.
De-lite screens of 120" can be had for about 130$ from their website.
The only disadvantage is that there must be near complete darkness to see the projection. If you like watching TV during the day, or if you have any ambient light then you might want to scrap the projector idea - given your price range.
Higher end projectors with stronger lumen output can work fine in rooms with more light.

Thanks much for your sugjestions.I have no windows in the ht room.Who makes the X1?I spose I could spend more.But it seems you get more for a thousand spent on a projector and a screen.

You can find $800 for Optoma H70 for 720p, Panasonic AE100 for similar - if you look - and similar in Sanyo PLV-Z4 on the market. Any of these would be superb, you'd have no complaints, stellar pic, and save bucks (you could even do the cheep, but satisfying looking "Poster Board" with black borders for a screen ($20-25 range). Hope this helps.
Personlly, I thought the Infocus X1 gave me head aches, had a slow color wheel (saw lots of rainbows), and rather low rez overall.