First off, let me say thanks to all who offered some direction and suggestions to my post. It's great to stumble on this site where someone can get some seriously educated help (I know everyone keeps everyone in check...ha ha)
Also, just wanted to share with you all that I needed to contact Whirlwind about some questions regarding the combiners (before I learned that they wouldn't work for my particular application). THE SERVICE WAS OUTSTANDING!!!! I don't know how many of you have dealt with their customer service, but they went out of their way to assist me.
Thanks again, everyone.