Lowepro Passport Sling DSLR Camera Shoulder Bag Case: Black
Holds camera body, 2 lenses, flash, filters, reflectors and lots more items with ease. It holds so much your shoulder will be hurting after a couple hours, so pack light. It's deceptively small for what you can stuff in there.
Phot-R Universal Studio Softbox DSLR Flash Diffuser Canon Nikon Sony Nissin Metz
Easily goes on the flash and diffuses fine
Neewer VK750II Flash Speedlite for D3100 D3200 P7100 D300 D200 D90 D600 D300 D90
Keeps up with the demands of even high speed drive on my Nikon D5200, puts out more than enough power. The S1/S2 modes are very useful for off camera, using the onboard flash to fire this unit.