Here is a set of Amplitude wallpapers that for some reason, continue to be hosted on PlayStation's website long after the official Amplitude website has been taken offline. I figured they would be worth posting being that they don't seem to be available altogether online. Designed by graphics studio Lobo, resolutions are 1280x1024.
Yea I think I found this awhile back. There are a lot of old ps2 games that have their official websites up still. Jak X: Combat Racing's has a ton of wallpapers too: http://www.jakx-game.com/
Yeah i think I might upload these to the site here just incase they all go offline. Nothing pisses me off more than to find a link for something that looks cool is offline.