WoW settings are completely fukt and there's no mod to grab all the settings for all the other mods. Get intimate with your WTF folder and saving profiles. Step-by-step what I did:

1) Wipe WTF folder.
2) Log ONE toon in on ONE computer.
3) Set that toon up exactly how you want him/her.
4) Save profiles for your addons such as Bartender4.
5) Log out.
6) Copy WTF/Account/<ACCOUNTNAME>/Saved Variables to all your other accounts on same computer.
7) Log in other toons, one by one, load those profiles and tweak where you need items for pets/auras/forms/totems. It shouldn't be a lot of work since you have all the same profiles.
8) Log out and shutdown WoW.
9) Use Microsoft SyncToy 2.0 (free) to make the WTF folders between your computers identical.

After setting this up the first time and being strict about managing my profiles, I have had far fewer pauses in my gaming to futz with settings. I'm an altoholic too.