The new MSN Toolbar Beta, powered by Silverlight, is now available for download from beta.toolbar.msn.com. The toolbar, with its Vista-like UI offers drop-down previews of MSN content in areas like News, Entertainment, Sports, Money, Autos, Shopping, Lifestyle, Health, and more. You can preview the content in these areas without having to leave the web page you're currently on thanks to drop-down windows showing the info in a preview pane. You can also get breaking news alerts and comparative search results from the toolbar - a feature that auto-populates the search box with your search query when you perform a search on another engine. This is very much like what Mahalo is doing with their sidebar tool, but without the sidebar taking up space on your screen.