Definitely appreciate the reply... Polarity is something interesting that I noted early on as I began to tinker with this. Prior to the odd behavior I described today, the lights worked with their positive connected to ground, and the negative lead(s) connected to the light outputs on the board - the opposite of what I initially tried. That the polarity isn't necessarily always the same coming off of these boards is definitely something I missed in my previous searches. I realize I also forgot to mention in my original post that I am operating in a command control environment, not conventional in case that makes any difference.
I'm pretty much a noob at attempting to create electronics such as this - so forgive me... Does it make a difference where the bridge rectified would be placed, as in between the board and the LED's, or between the LED's and the common ground? Is there a particular bridge rectifier part number I should seek out for this application?
Thanks!