Checkbook? There's GNUCash - about as good as Microsoft Money or Intuit's Quicken.
But did they install it. They need to install it, because the market they are looking at, may not know how to go out and find the best program and install it.
You think GnuCash is about as good as Quicken? Have you used those two programs?
I wouldn't advise my mother to switch over to GnuCash from Quicken. Would you?