Are any of those character retextures?
and will Project beauty work for NV?
Fellout is for the environment http://www.newvegasnexus.com/downloads/file.php?id=34888
Lings is like project beauty (and yes theres a project beauty for NV too Id get both and run them in the order Ling says but the FO3 one wont work because it edits individual NPCs) (link to lings) http://www.newvegasnexus.com/downloads/file.php?id=35352
Type3 is a body replacer for the females http://www.fallout3nexus.com/downloads/file.php?id=4280
breeze is a body replacer for males http://www.newvegasnexus.com/downloads/file.php?id=35451
and search for NMC and see what comes up his work is amazing in FO3 (even obsidian recognized his work by adding his stickers to the vending machines in NV)
New Vegas re-animated makes them run and move better http://www.newvegasnexus.com/downloads/file.php?id=35028
and the last one i had there makes the game run better idk how or why its just cool