Can Mac OS X Messages support more than one apple id? I have two Apple IDs, one for work and one personal. My iPhone's Messages settings are bound to my work id. When it receives messages, they pop up on my work computer pretty as you please.

I would like that to happen on my home computer too. If I open Messages > Preferences > Accounts on my home computer, I see my home Apple ID listed (along with AIM and Bonjour). I would like to add my work Apple ID as well.

When I click on +, I'm offered Google, Yahoo, Aol, and "other" as my choices. And under "other", the choices are "AIM", "Jabber", and "Yahoo"

I was able to add my work account under Settings > Accounts, but there doesn't seem to be a way to connect that to Messages.
AFAIK, this is not possible. You can add multiple E-Mail addresses to one AppleID (System Preferences -> iCloud -> Account Details -> Contact) , but you cannot use multiple AppleIDs for iMessage on one user account on a Mac.