Wow... that's a biggie
Could you post a playblast of what you've got so far?
..and give a little detail of the emitters, rates, fields, etc?
Thanks!
PS, I think I can help you with this one, as it is a LOT like my last explosion tut, so lemme know
Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com