I'm trying to decide which flash to buy to use off-camera with an OMD. I've glanced through materials on the Olympus FL-600R and FL-50R, as well as the 50, 52 and 58 from Metz. I'm not really sure what I'm looking for when I look at the specs. What's Important: Flash power Fast recycle times On the power side of things, I'm mostly interested in how they compare to my Canon 430-EXii, as that's the only one I've used (so it's my baseline for comparison). What's Not Important TTL. I couldn't care less. Price. Not that money isn't an object, but I'd rather spend $500 than $300, even if the gains are marginal. What I'm Flexible On Native off-camera use. I'd really like the ability to use it off-camera w/o any additional hardware other than the plug-in flash that comes with the camera. However, I'm probably going to end up with a triggering system (Pocket Wizard, Radio Popper, etc.) in my bag anyway, so I'm willing to overlook this one if I need to in order to meet my other criteria. And I'm plenty willing to consider brands other than Olympus and Metz. I mention those only because they're the ones I've glanced at so far, based on discussions I've seen here. Any recommendations for me?