After evaluating several installer packages, we've nailed down to InstallAware, Wise and InstallShield, with InstallAware appearing to offer the best solution overall. My only remaining concern is licensing.
We will propably have a single developer responsible for creating and mantaining the project files, with the build being generated on a dedicated build machine using command line batch processing. Do we need two separate licenses for that?
We may also want to have a backup license in case we need to work on the project files but the above mentioned developer is out of action (say he hit by a bus, for example

Best regards,
::Camelo