http://iscoresports.com/

Does anyone know the size to use for the header image? The one next to the logo in the upper left. I want just one image there without a tiling effect....
Thanks guys!

It will always tile, but you can use one wider than the max resolution you expect a monitor to be (1920 would be pretty safe). You could make the right half just be solid black or whatever color makes sense. The other option would be to just keep tiling in mind when creating your header image.