Zoom to 55mm and shoot as close as possible to your subject (at the MFD).

MFD -> minimum focus distance. The closer you are to your subject, the DOF becomes more shallow (more bokeh). You're using a kit lens, so don't expect bokeh effect like the primes with big aperture.

Speed light. SB-600 / SB-900

depends on ur budget la. if got money then go for sb600 or sb900. if not that much money nissin di622 mark 2 also ok. or the nissin di866 mark 2.

batery grip i dont know.

guys i wanna know
is there any effect if we're using 3rd party lens or speedlite ?

Need some comment

For the flash to "stand" up when it is used off the camera.

You don't need the Stand if you're mounting it on camera body. You only need the Stand when the speedlight is OFF the body.

Price? What speedlight huh? If you're talking about SB-900, it's RM45 in ShaShinKi, refer HERE. Is that the stand you talking about?

Purpose? Wireless. Try to find out Nikon Creative Lighting System (CLS).

There are many ways to deal with wireless:
1. pop-up flash from body / commander mode
2. use Nikon SU-800 as the commander
3. 3rd party flash trigger, eg: Phottix Aster (Trasmitter + Receiver)
4. master and slave, require at least 2 speedlights, 1 on body as master the rest act as slave.

I suggest you to read *_-_-_*Flash Thread V1*_-*, Lighting Up Photography.

Lastly, correct me if I'm wrong 

What body are u using actually?
Keen to ask since you'd ask about that issue a couple of pages ago~

NPS reuirements are not that hard. 3 decent lens more or less qualifies, even the plastic ones like the 24-85/2.8-4 and 70-300VR. The limiting criteria is the full time photog part. Of course its simple to just register your own company...

Starving for 17-55

kuala lumpur international motor show.

They do 90's We do 80's XD