Ok, I ended up saying what the hell and just updated it.
I've basically got around 90 headers now, which is quite a feat considering, and plenty for now, but there are a few that need a little touch-up before I can call it a day with this aspect of the site and move on to updating other aspects. So I'll post them here for you to take a look, and you do what you can when you can. (And don't forget when saving them to keep the size down to around 130KB max.)
http://culture.vg/images/headers/darksouls.jpgSome shit at the bottom-left corner that needs cleaning.
http://culture.vg/images/headers/magicthegathering.jpgAgain at the bottom-left corner there is something that looks like a little stick, which is the top part of a spear, and it needs to go. It's very small, practically tiny, but you'll see it.
http://culture.vg/images/headers/deusex.jpgThis is a little more difficult. I want the missile/bomb thing that the cops have fired at him (at around the middle of the top of the image) to disappear along with its smoke-trail, but in such a manner so that the smoke cloud will not look butchered or anything. You'll basically have to remove just as much smoke as is necessary, but not too much.
There may be a couple more but I need to get hold of large monitor to look at all of them carefully, because the 10" laptop screen I am using is not ideal for the job.