I'm getting more and more into shooting macro. I have a dedicated macro lens (minolta 50mm 3.5 with a matched extension tube that allows me to shoot 1:1). The issue I have of course is that a lot of times there isn't enough light. I mostly shoot bugs and flowers in my back yard hand held, and I try to shoot at the highest shutter speed possible (especially for bugs). But a lot of times high shutter speeds aren't possible if there isn't a lot of sunlight out. I've been looking at macro ring lights...and I saw that sony makes one for $300. Not sure I want to spend that much. Then there are cheap ones around $50 or so. Are they worth it? Should I look at flash or continuous lights? Anyone have positive experience with using a certain brand? Thanks.