Xavier, to answer your question about the Misifts box set -
there's very little "new" material in terms of unreleased songs, however the entire 3rd disc is full of unreleases outtakes/different studio sessions, and they're of extremely high quality. Great stuff for a fan, but for a causual listener, I'd say just stick with Collection I (the one with the Crimson Ghost skull on front).
The 4th disc is Static Age, one that iirc never saw a release, but has some very early Misfits stuff. You can get it seperately with an extra song, I think.
Re: jim993's "i never understood if misfits would be considered mainstream punk or not anyone know?"
The original Misfits, they're classic punk in my eyes, although in the US in the early 80s, everything punk was regarded as "New Wave", if not dangerous.
With their Earth A.D. album I'd say they helped define Mosh/ Hardcore (if not invent).
I think Danzig has a new album coming out in June or so.