Thanks for the replies!
@Russell Ponce , Aaron's idea isn't bad, though there is no reason software couldn't easily do this. Seems a little silly to pay someone to do this over and over again when it could just be automated in the process of importing the list.
@Recia Davis , I've begun to check out Podio. It seems like it will do what I want, though it's a bit clunky. It seems like the developers have gone out of their way to make a generalized system (which is cool), but as a result it's a bit confusing until you get used to it. Also, they seem to be ignoring some basic functionality, such as being able to bulk edit a field across multiple entries or select which fields I want to have exported. However, right now it looks like a workable solution, and if they flesh out the functionality a bit more, it looks like it will be a great tool. I'll try to remember to report back here if I have any more insights or updates regarding Podio.
@Jerry Puckett , you obviously do a lot of direct mail, so if you have a system you're happy with, it must be pretty good. I'm going to have to listen to your BP podcast. Thanks for chiming in here!
@Darryl D. , I have my source lists in Excel, but I want to be able to put them all into one database, rather than having multiple Excel docs floating around that I have to compare. I really appreciate your offer on this. Let me check out the other ideas first. Also, I know that fellow BP member Scott Costello has a mail management software system in beta that is worth checking out.