Even in the day of video, I love screenshots. But I find it hard to take good combat pics in this game because of the 1st person & fast (non-Vats) combat, so mostly you seem to end up with ones of your companions rather than your own character, or ones just showing a monster running straight into your face. Still once in a while you get one, and there's always the misc & "funnies."
(these are general)
Crested a rocky slope & suddenly ambushed. I think Arcade's in big trouble...
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-273a.jpg
Wait, never mind Arcade, *I'm* in big trouble...
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-275a.jpg
With a few stimpacks and fast backpedaling I did survive, but only because Boone was able to kill half while they wailed on poor Arcade-bait. I got the other half tho, including the Alpha, no VATS. Teamwork! (edit:going thru my too-many vid files realized I did use vats in that one. The empty AP bar should've been my clue. Sometimes I hit it as a total panic button take my 2-3 shots & then forget I used it. Don't want to be accused of purposely lying, lol.

When you're walking/sneaking to Novac/Vegas at clvl-1, using merchants & patrols as escorts works well.
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-094.jpg
I like my character to be shorter than everyone else. It makes looking at high shelves a bit difficult tho.
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-278.jpg
Shooting cave geckos from on high, Arcade tried to get closer range like always, & stupidly stepped off the ledge to fall below, forcing my lazy self to unholster my weapon to help him.
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-281.jpg
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-282.jpg
(these are silly-Boone, my fave topic ::blush:: ...humor mileage may vary.)
Boone:fights hard, parties hard, sleeps hard.
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-247a.jpg
Get your own Mini-Boone, on sale now.
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-213.jpg
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-215.jpg
Stop stealing my smokes, man.
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-279.jpg
After an exhausting day of killing fiends, and rescuing Legion slaves sometimes it's just nice to have a friend to lean on.
http://crimsonkeep.com/wallpapers/data/media/33/falloutNV-280.jpg