I go to a music college and i've been doing headshots and candids for fellow students for some time. And I never used flash. But I always was lucky with lighting or had to almost always do outdoors and check forcasts constantly and schedule shoots on good weather days. In the last few days I got contacted by about 4 potential clients and I'm thinking. Is the the time to get a flash? Like an sb600 or something? I always charged either nothting or very little and I'm getting alot better to the point where people insist paying more than I ask for so I've moved my rates up a little. So I'm charging more now and perhaps my pictures should have a heightened level of professionalism? What do you think ?