Gear is always a personal choice, but here is the gear I use:
I use the Olympus OM-D EM-1 as my primary camera. The camera is a part of the micro four-thirds (m43) format system. The m4/3 system is a great balance of size and image quality.
I use the Olympus OM-D E-M5 as my backup camera and travel camera. The E-M5 is a bit smaller than the E-M1, but the autofocus performance is not quite as good. The image quality is identical to the E-M1. You can find the OM-D here at Amazon.
I still use a Nikon D200 for a few things (sports, wildlife, etc.). With my acquisition of the Olympus OM-D E-M1 and its improved autofocus performance, the D200 is seeing less use.
When I want to go with a pocketable camera, I use the Canon S95. It’s a few years old, but you can get the latest S110 version here.
My favorite m4/3 and 4/3 lenses are:
I use mostly Gitzo tripods such as the 3531.
For ultralight traveling, I love the Gitzo 0541. It weighs just 2 lbs and works great with m4/3 gear.
Ballheads, L-plates, etc.
I use Really Right Stuff (RRS) ball heads and plates. I have several of their ball heads and have their L-plates on all of my cameras.
I use the Wimberly Sidekick with a RRS BH-55 when I break out the big Nikon glass for birds and other wildlife.