Normans? Jesus, you're more likely to arc the thing and go out with a heart attack. Your best bet would be to rent a single Profoto Pro-7B battery pack, one head, one stand. When shooting location like this, you don't want to be dragging Gennies [generators] around.
I don't know what this shot looks like big, but from what I gather you can use either a large softbox or an umbrella to get the look. Single light source, about three meters to the left of the photographer. I don't know if he's dragging the shutter, doesn't look like it, but I can't be sure.
This could also be HMI with a nice high ISO and a good lens. The reason is with cold flash the falloff is quite shallow.
Teller shot this right? For a lot of his stuff he just uses a simple hot shoe flash. But with regards to investing in equipment I would personally suggest some 7B's. The key to good lighting is being able to do many different things with only a simple kit. Hot shoe flashes are very limited.