yongnuo YN-565 EX, well priced and its brilliant
Quote (itsLyle @ 11 Dec 2012 00:38)
a sb-700 is a fine choice. i would recommend a good diffuser. i use a Gary Fong Lightsphere Collapsible sometimes, which IMO is the best diffuser for event photography by far.
good luck!
the Gary Fong Lightsphere is bad, you can get much better results just by bouncing the light off the ceiling or walls (you have much more control this way)
even better is get the flash off camera and start using a softbox