In going through my email I came across some information about some new gadgets over at the McCormick's music web site.  I never found the gadget I was looking for but I did find a really useful page of PDF links to articles on a lot of very informative music technology topics.  On their Educational Tech Guides page they list several dozen articles on topics related to microphones and their use.  Some of the sample topics include things like Critical Distance and Microphone Placement and Antenna Setup for Wireless Microphone Systems.

The page is worth a quick glance if you ever have microphone problems while recording your ensembles or if you just want to learn how to record things more effectively.  Kudos to McCormicks for providing this resource!