Shooting with Dual System Audio on a Canon EOS 5D Mark II
Daniel Plym, Director of Video Publishing at Buzzine.com , gave a crash course on how he uses his 5D for red carpet shoots. He is a one man operation and breaks down how he combines the 5D with a Zoom audio recorder, Sennheiser Wireless microphone, Pluraleyes software and Final Cut to capture clean audio.
VIA: Createasphere
Looks very similar to the setup I use. I wonder if you might try the H1 when it is released. Also, what sort of mount are you using on your H4N to attach to your camera?