I stumbled accross a youtube video of zakk wylde playing a 12 string for one of his live performances for the book of shadows CD - and he's using a 12 string and pulls bends and all. So I'm thinking of getting one -


Is there anything I should know before hand,
such as ...
limitations of a 12 string, t
the ungodly cost of replacing strings?
Tunning? (I know we have one set tuned to E and the other to Eb),
brands to consider
steel string or nylon (if they exist)

or any general advice ...