Official High Res Texture Pack + fix, then Skyrim HD - 2K over that, and Static Mesh Improvement Mod over that.
OH and another mods which I would say is essential for your list Krugga- Realistic Ragdolls and Force. Couldn't play without it now!
After getting bored on the PS£ version, I thought I'd buy it on PC and try the modding. The game runs fine on high on my laptop (i7, 555M, 4gb, etc.) but will the mods make it run slow? Mostly wanting to use updated textures, etc.