Just got picked up by one of my mates to do a photography gig at a local bar in Hamilton while he DJ's. So I wanted to see what accessories you guys think I would need. In specific external flashes. Lens is all sorted but am curious to what other bits and bobs would come in useful. I will be shooting with Nikon.
timmmay: Just a flash. Bounce the light off the ceiling or better yet the walls. Sometimes you may like to shoot high ISO with a fast prime lens.
This pretty much...
The OP did say "flashes" (plural), in which case some study is needed to get a technical understanding of how Nikon's "CLS" works. With a single flash on-camera (not using wireless) it just works. CLS with wireless triggering of off-camera units "just works" too - but only after serious RTFM to understand how to use it.
Nikon SB600 (or later and greater) or third-party flash which are "iTTL" and "Nikon CLS" compatible. With the smaller SB400 etc, the head only tilts - not rotates, so that's a problem for bounce flash when changing from landscape to portrait mode. If the venue has fixed incandescent lights, then a coloured gel filter on the flash might be a good idea. But alas, at most music venues there are coloured lights, and flash photos look pretty bad if you're trying to capture the atmosphere, so high ISO and a fast lens and no flash. At small venues, lighting is extremely challenging. Converting to monochrome is another option (light colour less of an issue, noise from high ISO becomes "grain" - don't forget to charge extra for the arty prints) Monopod might be useful - a tripod can be a be cumbersome.