Although I've been busy playing this beautiful game, I also checked the New Vegas Nexus, a sister-site to The Elder Scrolls Nexus, which is, hands down, the best source for mods for games published by Bethesda. So I stumbled upon this interface-mod. What it does? It changes the appaerance of the ingame-menues using graphics from older Fallout-games. In my opinion it fits better into the game than the default menues, which are kinda boring, but that is just my taste. Another benefit of this mod is the fact that it also enhances menues. See, in the normal version of the game, there are only like three choices displayed during dialogs, if you want to see the other choices you have to scroll. Using this mod allows you to view eight or nine, if I'm not mistaken.
So go and check it out here: http://newvegasnexus.com/downloads/file.php?id=34971