Fallout: New Vegas: Gun Runner's Arsenal
offers players a cool set of options for dealing with the worst of what New Vegas
throws at them. For around $4, you gain access to numerous weapons, weapon mods and ammo types. Although a big chunk of the weapons cater to ranged characters, there are a couple of really nice melee weapons available as well. I'm not much for getting up close and personal, but with a rev'd up chainsaw, I'll happily charge into the fray without regard for my personal health. If you can't find something to fit your play style, you're not looking hard enough.
Although the new weapons do border on the extreme (such as a mini-nuke launcher), none feel out of balance or too powerful. You'll gain a bit of a power boost if you're still near the start of your adventure, though players on the back-end will find the new weapons give you just enough of a edge power-wise to match up against harder enemies, but not enough to break the encounters.