Wow-christianronnel, Those are a couple of inspiring shots!
I think my equipment list is coming together:
5 DIII + 7D w generic straps
24-105/ 24-70 +10-22 & 8-15 fisheye
1 ratty looking backpack
cards & batteries-
It could hardly be simpler
Just gotta talk my wife out of the plays on Broadway and most the museums now...
As far as I can tell from the web site , the Statue of Liberty is open, fingers crossed.
Please don't avoid the Broadway shows, at least not all of them. They are a must! And since you list two bodies, don't carry them both at the same time, they will just weigh you down. You will be walking A LOT. Keep it light. Just take a body, two lenses, and minimal extra stuff. You'll have to deal with security sometimes, you'll have to manage and hold on to it all in the subway and you'll have to put it somewhere when you eat. A lot of places you go are small. Tables, chairs, etc are cramped. One SLR on a BR strap with an extra lens in a backpack along with all your extra stuff (including perhaps a light rain jacket or umbrella) will be plenty.
And I'll push my favorite little flash one more time. The SunPak RD2000 with a StoFen diffuser works great on the 5D-III for fill. Don't forget to get a few eneloops. Two AA batteries in that flash should last all day with an extra two in your pocket.