Hey guys, I finally have a PC that can run skyrim, so I bought it and all of its DLC. So do you guys have any mod recommendations?

I'm looking specifically for:
a good realism mod
A vampire overhaul, preferably one that brings vampires to where they were pre-dawnguard, but with all the cool vampire lord stuff too.
skin mods! what are the best out there?
better quest lines? alot of them were dry, especially the civil war
and finally, awesome weapon/armor/robe mods

Also, if their are any mods like oblivions 30 days zombies mod that would be cool to look at as well <3
any recommendations would be awesome.

Also is there any mod organizers like the oblivion mod manager I should know about?

Thanks in advance guys.