Off- Camera Flash Gear
Yongnuo YN-560III - Hands down, the best value off-camera flash. I have 2 of these and they've worked flawlessly since the day I bought them.
Wireless Flash Triggers
Yongnuo RF603II - Cheap and reliable. The perfect companion to the Yongnuo YN-560 speedlight.
Standard Umbrella Adapter - This bit of kit will connect the flash to the lightstand, and have a hole to insert a shoot-though umbrella.
4-Section Potable Light Stand - I like the 4-section light stand because it fits nicely into a back pack. In fact, you could probably fit a couple int
Westcott 43-inch Shoot-Through Umbrella - The Westcott 43-inch umbrella folds up into a compact form factor. 43-inches is a happy medium in size that can cover single person head shots and small group shots.
I've used these pieces of equipment for years now and have a number of videos where I demonstrate the ability of this gear.