[Crinos]

Hehe, some silly suggestions

1.) Use bgproperties="fixed" in your body tag to make your background a watermark ... dunno if it will work with on-IE browsers tho..
2.) Make a big image as background, set your page in a table that matches the width of that image, use that image as background, then disable scrolling (lol) ... scrolling="no" I think was the tag in the body
3.) You can make your entire page a huge flash animation (man, that's silly)
4.) Lastly, you also have the option to ignore what I just said and listen to the folks above ... they have a good point!