The http://skyrim.nexusmods.com/downloads/file.php?id=9080 by Vano89!
Have the official High-Res texture packs but find out too late that you can't really run them all? This mod helps by giving you more options with the extent of the high-res textures you want to use!
The complete optimized Hybrid option makes a sensible compromise with the official high-res texture pack. Which is this basically: if there was a 512 texture in vanilla Skyrim, instead of ballooning it up to 2048 texture all of a sudden (which is default resolution for the DLC) a more reasonable but still much prettier-than-vanilla 1024 version is made.
Strapped for vram? The mod has an option for 1024 across-the-board-capped textures, hand-picked and hand-compressed from the official texture packs, to replace the truly hideous 512 textures. You might be desperate for vram, but not that desperate! This option is a great compromise to give low-end specced computers a less blurry looking Skyrim!
Finally my personal favourite option of the bunch, for the discerning medium rig mod user, the Hybrid + Vanilla normal maps option! Using the same high resolution mix of 1024 and 2048 textures as the first option, but with a clever use of vanilla normal maps underneath them in order to reduce vram usage at virtually no visual quality loss.
Within installation, you can even select certain 'secondary' areas where you don't really care how sharp say, some clutter looks, or some NPC clothing looks.
Please read installation instructions on the main page (you still need the actual .bsa files for 2 of the options).

