Just picked up the 1990 model of the Canon 100mm f/2.8 here on the forum. Who needs USM or IS? (Well, I probably wouldn't suffer from having it, but my budget would.) Shot hand-held with flash and natural light, and I only had two shots at the little bugger.
Still working on PP, macro-technique, etc. Input always welcome. I'm probably not 'sharing my macros ready', but I'm just so chuffed to have a proper macro lens. It really is a whole new world.