GLiMR's Case details page shows key information about the case such as the stage in its life cycle, its outcome, and the key people or organisations involved.
You can also define your own custom data fields to suit your business, and of course users can store free text notes against each case.
You can easily see the history of who did what and when from the Tasks tab on the Case details page. Other tabs show you a case's deadlines, the documents produced, and the history of status changes.