[FNV] Is there a mod that makes the game's leveling system more like Fallout 1 and 2?

More like Fallout 1 and 2 in the sense that tagging a skill doubles the rate at which those skills increase, and skills can be increased beyond 100 with diminishing returns. I am about to try Tale of Two Wastelands for the first time, and I'm afraid that by the end I'll have a jack of all trades character who excels at everything and my decisions at character creation and over the course of my playthrough will ultimately be meaningless.