Ajax dragging and dropping arranging

Does anyone know of a plugin that allows you to drag and drop posts or arrange their order?

I know there are plugins that allow you to fix orders – but is there a visual one where you can see what your dragging and dropping?

The closest thing I can think of is in the actual admin system – you can drag different parts around the page

I know there’s lots of open source code out there that does the job – but I assumed somebody else would have thought of this and have programmed something already

Thanks

Omar