A while ago I remember finding a mod that when you killed something you would gain experience, and with each of your levels you would need the specific amount of experience to advance to the next level. Like an MMO way to level. The mod also made it so no matter what skills you raised on that level you could spend three 5x points on your attributes after resting anyway, so you wouldn't be anymore restricted to raising specific skills if you want to spend the most points after leveling.

Does anyone know of this mod I am looking for, or know of something similar?

http://www.tesnexus.com/downloads/file.php?id=15619?

I think you're thinking of two different mods. ObXP is the first one, and I can't remember the name of the second one. But they are incompatible.