Looking for jQuery Layout plugin - similar to XtraLayoutControl

Question

I've used the XtraLayoutControl before in Winforms projects (see http://www.devexpress.com/Products/NET/Controls/WinForms/Layout/)

I'm looking for a jQuery plugin that allows drag-drop layout editing of listitems with the following functionality: Ability to split a row into multiple columns (preferably by dragging an item on top of another one). Ability to group multiple items (maybe as a nested list).

I don't need any kind of the databinding functionality.

I've tried using jQuery UI sortable and resizable, but it still needs a lot of work - thought I should check to see if there is something already available before I spend any more time on it.

Thanks