There's a mod in the works for Fallout: New Vegas called "Beyond Boulder Dome". It's based on a concept established in the cancelled, pre-Bethesda Fallout 3, known then as Van Buren.
These character models in particular stood out to me as pretty damn impressive for a mod! They've got a slightly Borderlands ish look to them, and I mean slight. It's maybe the outline on certain elements within the mesh.