Not a screenshot but I did a video showcasing some Crysis 2 mods I was using, which looked really awesome. Youtube did desaturate and degrade the videoquality some, but it still turned out really nice, shows just what is possible in PC gaming. If 1080p isn't available when you see this, wait a bit and it will be, Youtube takes ages to render.
[youtube]http://www.youtube.com/watch?v=r6TdMGD6m2Q&feature=youtu.be[/youtube]