The ability to show lists and SQL data in one unified view is behind the SharePoint 2010-compatible release of the Virto Data Grid Web Part from Virtosoftware.
The JavaScript-based control gives users the ability to display any field from a list or table, with drag-and-drop ordering, sorting and resizing. The Web Part also does away with the need to use SharePoint Designer to create custom grids, according to the company.
Further, the Web Part supports two nested-level sub-grids and SharePoint Access Level, which limits who can edit data through the grid.
Virtosoftware also makes other Web Parts for SharePoint; visit their website for more information.