It’s an idea proposed by Ipstenu that might just work. The gist of her suggestion is to manage widgets similar to how we manage menus. Instead of all that fancy drag and drop stuff, we switch to a check box approach where users can check which widgets they want to have added to a particular sidebar. Judging by the comments left on that post, a number of people feel that her concept is a great idea and should be considered when the time to rework the widget management area arrives. Drag and drop was cool when it arrived but having 3-5 sidebars with 30 available widgets makes drag and drop not so cool anymore.