The beauty of it is you can successfully use more than one toolbar on your New MSN IE 7. The time you save looking for links and even bookmarks can be reduced with toolbars. For myself the usage of navigation tools will make it more reasonable to have an active online content and have a life away from the computer also. Yes, it takes time to set up new browsers and customize toolbars to your liking. But, you quickly gain that time back with quick navigation. For those who have limited schedules it makes your online time more fruitful when you only have a short time to go online. You can customize your tool bar with the features you use or maybe considering. With your Yahoo toolbar you might decide to choose flickr for online storage because the link is right there. Likewise the services offered by other major networks can also be found in their customized toolbars. You don't have to marry a network. I read a lot about who is winning or losing the big fight between browsers and networks. From my understanding these different companies come together and work on building a better Internet. There isn't as big a fight as is rumored on the technical side. Sure there is competition in development ...competition drives excellence. When it boils down, being compatible and effective for users is what is important.
This shot shows the types of choices available on the Yahoo toolbar which you can customize and the multiple different toolbars that can be used on IE7 browser at the same time. 
Separate postings will be made about other time saving plugins and navigation places.