Flex 2 CursorPool - http://www.abdulqabiz.com/blog/archives/2006/09/07/flex-2-cursorpool-for-cursor-management/

CursorAttributes.as

package com.abdulqabiz.utils
{
    public class CursorAttributes extends Object
    {
        public var cursorType:Class = null;
        public var priority:int = 2;
        public var xOffset:Number = 0;
        public var yOffset:Number = 0;

        public function CursorAttributes (cursorType:Class,
            priority:int=2, xOffset:Number = 0, yOffset:Number = 0)
        {
            this.cursorType = cursorType;
            this.priority = priority;
            this.xOffset = xOffset;
            this.yOffset = yOffset;
        }

    }
}

CursorPool.as

package com.abdulqabiz.utils
{
    import mx.managers.CursorManager;
    import mx.core.UIComponent;
    import flash.events.*;


    public class CursorPool extends Object
    {
        static private var instance:CursorPool = null;

        static public function getInstance ():CursorPool
        {
            if (!instance)
            {
                instance = new CursorPool ();
            }

            return instance;
        }

        
        private var registry:Object;
        private var cursorID:int;


        public function CursorPool ()
        {
            registry = new Object ();
        }

        public function register (component:UIComponent, cursorAttributes:CursorAttributes):void
        {
            if (component)
            {
                registry[String (component)] = cursorAttributes;
                component.addEventListener ("mouseOver", handleMouseOver);
                component.addEventListener ("mouseOut", handleMouseOut);
            }
        }

        public function unregister (component:UIComponent):void
        {
            component.removeEventListener ("mouseOver", handleMouseOver);
            component.removeEventListener ("mouseOut", handleMouseOut);
            delete registry[String (component)];
        }

        private function handleMouseOver (event:MouseEvent):void
        {
            var component:UIComponent = UIComponent (event.target);
            var ca:CursorAttributes = registry[String (component)];
            
            if (cursorID)
            {
                CursorManager.removeCursor (cursorID);
            }
            cursorID = CursorManager.setCursor (ca.cursorType, ca.priority, ca.xOffset, ca.yOffset);
        }

        private function handleMouseOut (event:MouseEvent):void
        {
            CursorManager.removeCursor (cursorID);        
        }
    }


}