Today I contributed my first image to the FALLOUT WIKI.
I have the PS3 version of the game, so I don't know of any way to do a screen grab (or capture).
My solution was to use one of my DSLRs to take a photo of my HD display. I then imported the image into PS CS5 and edited it to fit the image guidelines of this WIKI.
My next step is to experiment with different lenses and shutter speeds to see if I can eliminate the scan lines.
The image on my Sony Vizio display is absolutely gorgeous. Unfortunatel the game only plays in 720p (my display is capable of 1080p).