After about two years of thinking and coding, my colleague Erik Borra and myself are happy to announce that the Digital Methods Initiative Twitter Capture and Analysis Toolkit (DMI-TCAT) is finally available for download. DMI-TCAT runs in a LAMP environment and allows for capturing data in a number of different ways via both the streaming and search APIs, and provides a whole battery of analytical approaches to investigating tweet collections. For a more detailed description check out the wiki on github. There is also a paper (paywall, preprint will follow) that details the tool and the thinking behind it.
Tech support questions will not be answered. Please refer to the FAQ of the tool.