Choosing a Javascript MVC framework for a drag and drop interface

USECASE: I am starting with a project which involves a lot of client side scripting. It is similar to a mini CMS where user can drag and drop html components. Somewhat similar to this. Now I am in a situation where I have to choose a MVC framework for defining the components that the user will be working on. (performing operations like drag, resize, delete etc).

Now the problem I am facing is,in choosing a framework which would be easy to learn and implement. I have the basic knowledge of Javascript and jQuery and have been using it for some time,but no experience with MVC.

My research from past 2 days says backbone.js is good to start,but I would like comments/suggestions over the flexibility it gives on handling html components and DOM elements. How can I store the initial content of the HTML components? (Outer boxes and structure).

Also, how can I handle multiple components of same type? Generating Id's dynamically is an option, but it becomes difficult to manage multiple elements with dynamic ids. Is there any other way they can be handled?

Which framework would it be easy to handle events on these components?

i use backbone for a web app which involves dragging and dropping, and i use jquery ui to implement the drag and drop features. They integrate pretty well imo, when you want to implement a droppable backbone view, for example

render: function(){
    var $el = this.$el,
        over = false,
        origWidth;


       if (!this.$el.is('.ui-sortable'))
            this.$el.sortable({
                revert: false,
                axis: 'y',
                placeholder: 'placeholder',
                items: '.load-order',
                containment: this.el,
                receive: this.onOrderDrop,
                over: this.onOrderOver
                out: function(e, ui){
                    // Resize back to original width
                    if (over && ui.helper)
                        ui.helper.stop().animate({width: origWidth}, 'fast');
                    over = false;
                }

update:

with backbone views, you have a skeleton html structure which is then incremented with backbone views. Each view has a template which is rendered with model data you can read more about it at Backbone Essentials

also i made a small todolist to demonstrate draggable event with backbone
http://www.github.com/joaoxsouls/todolist