What to bring to Florence, Rome and Paris

This isn't so much a post about the following places but how much gear should one bring to a 12 day getaway? In the past I've brought 5 lenses, a body, triggers, 4 flashes, lightstands, tripod, and umbrellas, RayFlash, Lumiquest SB-III, etc.

And while I tried to use as much gear as possible, I found that most of that stuff stayed in the bag. Rarely did I opt for the 14-24mm f/2.8G or the 85mm f/1.4D, or the extension tubes, etc.

Which really means that all that I carried a lot of extra weight.

On the other hand, I've taken trips with just my iPhone and had a blast because the iPhone was always with me. It was effortless and weighed next to nothing. On the other hand, I won't be retouching any of those images anytime soon!

An hour before leaving for the airport I've packed the following:

1 Nikon D3 body

1 Nikkor 24-70mm f/2.8G lens

2 16GB Sandisk Extreme III CompactFlash cards (in the body)

1 R-strap camera strap

1 small Tamrac shoulder bag

1 SB-600 (left the 800's at the studio)

Looks like a lot but it all just assembles together into 1 unit if necessary. I have no issue with bumping the ISO up to 6400 if needed. So I don't need faster lenses. 24-70mm really gets me 95% of what I want. I don't need a charger because the battery (charged) is good for 1500+ shots which is more than I'll get on the 2 cards I've brought (set to overflow).

What would you bring on a 12-day trip? :)