If you want the ultimate in graphical enhancements:
Texture Pack Combiner
Sharpshooters Extreme Graphics Vision ENB:
There are extra high res bodies and faces too.
And finally, there are ini tweaks, for instance changing ugrids from 5 to 7 or 9. And shadow enhancements because let's face it, the default skyrim shadows are horrible.
A word of warning though, you'll need a beast of a system to run it all on 1080p and higher. I'm talking a core i5 3750k oc'd to 4+ghz, 8gb 1600mhz+ dual channel ram, 3/4 GB VRAM discrete gpu, and an ssd ideally. You can go ahead and disable AA as well once you have all the textures installed and running, you don't need it with all hi res textures, it just makes things blurry.