LOL, the rush seems to happen with several of my questions, and it's never Forum specific.
I did find some additional information, and am pretty sure Revolution is the way I will go. For a small railroad, with a small roster, I don't think it makes sense to invest in Digitrax or the like.
Do you know what sound board Kevin installed? I an looking at the Soundtraxx boards hoping that is the right solution for the Aristo U25B as well as the spectrum C-19.
Thanks again for all you help,