My nephew threw a wii control and tore my screen..

There are a couple of screens available for this model. There's a screen assembly, which should include the inner lenticular and fresnal screens. And there's a super/ultra shield (outer) protective screen. You can find Hitachi model # 57F500 OEM replacement screens and pricing at the following links:

Hitachi 57F500 Replacement Part Screen Assembly

Hitachi 57F500 Replacement Part Super Shield Screen

They cost around 300 new, can order it off the hitachi web site, but i would look on craigs list and watch for someone getting rid of a 57 inch tv, and snag that one , use the screen off that, doesnt have to be same brand