Sounds awesome! You should make a giant lava/inferno monster in the the middle of the volcano!
Happy-HG Forum
Kaios
Omnisent
GNARRR!!!
_Bach_
I've thought about using command block magic to fling tnt out of it so it looks like it's errupting... but that might lag people too much xD
Kaios
You know how when a TNT. Explodes blocks go flying? You could do that with non-flowing lava and stone.
Unitus
Suggestion: Make a place where fns can be put down (a wide open area) with no grass. 
_Bach_
I'm making a colosseum on it (which may be spawn). I would love to make a full town and harbor and all...
I'll try to make a good place to go get them good Unitus
I'll try to make a good place to go get them good Unitus