For video work I don't see the point in AF discussions. Your preference should be for a focal length range, which works well in bars.
As a zoom I would recommend the 16-35mm f2.8 so that you are wide enough and still have some possibility to change focal lengths, but your 17-40mm should fill this role in a similar form, so there's no need to purchase anything in a hurry. Using your 24-105mm you will have plenty of flexibility towards longer focal lengths.
I wonder: How much would you be willing to swap lenses to get the better color rendering of say a 50mm f1.2?
Thank you for all the replies so far!!!

I am thinking of trying to rent the 50L f/1.2......I had kinda thought that would be short enough to use, but with all the suggestions of the 24L and 35L, hmm....well, I'm trying to decide.
I do have that 17-40L, but at f/4, I'm wondering if it is fast enough.

Oh well, I'll take some test footage between now and 9/21. I'll try to take some notes, etc.
I recently got the Sekonic 478DR light meter:
http://www.amazon.com/gp/product/B00BBQ8ICY/ref=oh_emp_details_o05__i02?ie=UTF8&psc=1I pulled it out of the box last night, and am reading up on how to use it...I've never used a light meter before, but this one says it helps with settings for HD video so I'm gonna figure how to use it and test shots out using what it tells me. Hoping that will help some.
I'd not thought about going as wide angle as some have suggested, I was hoping to travel as light as possible, since this turns into a pub crawl from the French Quarter all the way to the CBD...quite a distance. I have a sling pack which I was gonna bring camera, 3 lenses or so....batteries/ CF cards...and I was going to carry my monopod with the video head.
But I do have the Rokinnon 14mm f/2.8. I'd thought it would be too wide of a lens, but with the suggestions of wide angle lenses, and with this one being decently fast, perhaps I should consider bringing this? I could shoot wide with it..and crop in as needed in post I guess.
I've never successfully shot at high ISO's so far....when I've tried in the past, I just could not see anything and it was noisy....I've wondered people showing beautiful nighttime street videos show with the 5D3 how they were doing this.
Anyway, gonna practice this weekend and all next week in advance of the shoot.
Again, thank you all so
VERY much for the suggestions and advice. Please keep it coming as you think of new things pertinent to my situation here.
cayenne

PS (edit) I just found the Zeiss 50mm f/1.4 was for rent about the same as the Canon 50L:
http://www.lensrentals.com/rent/canon/lenses/normal-range/zeiss-ze-50mm-f1.4-for-canonWould anyone suggest I might rent the Zeiss over the Canon?
c