Need New Display, Plz Help!

[speedy523]

Ok so i've narrowed down my choice to a couple displays. I'll be using the display for my pc, xbox 360, ps3, and as a tv (wit ha monitor ill buy a tv tuner). For the pc it'll be used for everyday tasks, gaming (got the 4870x2 for it!), image editing, etc.

I set a spending limit of around $2000, and maybe a couple hndred more if its with a nice warranty etc..

So heres what i've narrowed it too..

Gateway XHD3000

[URL="http://www.gateway.com/retail/xhd3000.php"]http://www.gateway.com/retail/xhd3000.php[/URL]

Dell 3008WFP

[URL="http://accessories.us.dell.com/sna/products/Monitors/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=223-4890"]http://accessories.us.dell.com/sna/products/Monitors/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=223-4890[/URL]

Sony XBR Bravia 40" (Anyone know the difference between KDL-40XBR5 and KDL-40XBR4 )

KDL-40XBR4
[URL="http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921665116632"]http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921665116632[/URL]
KDL-40XBR5
[URL="http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10553&storeId=10151&langId=-1&productId=8198552921665119631"]http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10553&storeId=10151&langId=-1&productId=8198552921665119631[/URL]

Also whats the difference between the XBR4 and XBR5 40" Braiva's?

So which display is the best?​

P.S. i know the bravia's are over 2000 on sony's site, but i can get it for 2000 or less.