Well if you're not concerned about price we'll rule out speedlights.
I'd look at three different lights:
A profoto setup
A Elinchrom Quadra Set up
Or an Elinchrom Ranger set up
I have an elinchrom ranger rx speed as pack and love it to death. It's really heavy but puts out 1100 w/s.
The quadra comes with two heads but puts out about half the amount - it is a lot lighter though.
Don't know if you just wanted some names to look at, but let me know if you have any specific questions.