Those suggestions sound great, thank you! Relative to details... I believe I would be using them for stationary interview/testimonial/etc. situations, so having a lot of movement flexibility is not really an issue. My main motive in getting a lapel mic is to put my subjects more at ease, as they are a lot less obtrusive then say, a boom operator. I don't really see using it in my narrative work, so it's alright if it's fairly large/visible. I'd be connecting it to a marantz pmd660 if I didn't go wireless.
Also, I will probably be using it in situations where I do not have total control over the sound space... most of the lavs I looked have been omnis but I also seen a couple cardiods.
a. Why are omnis more common?
b. Is having a more directional lav beneficial in comparable ways to other mics, or is there a major difference in terms of usage there?
Thanks!!