Some of my favorites
Deadly Reflex
http://www.tesnexus.com/downloads/file.php?id=8273
Ren's Beauty Pack
http://www.tesnexus.com/downloads/file.php?id=4431
There are also a ton of body replacers, which I actually suggest you use since the default bodies in the game are pretty meh, especially since you'll be looking at them for like 100 hours+.
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Chrono1219