Visual Studio 2008 SP1: - Visual Studio provides productivity tools for developing applications using managed code. All the existing features of Visual Studio are available for Silverlight. In addition, this version of Visual Studio includes Silverlight-specific features, including IntelliSense, debugging, and Silverlight project templates that create and link all required files. http://www.microsoft.com/downloads/details.aspx?familyid=FBEE1648-7106-44A7-9649-6D9F6D58056E&displaylang=en

Microsoft Expression Blend: -This tool can be used to create and modify the presentation layer of an application by manipulating the XAML canvas and controls, working with graphics, and programming the presentation layer with a dynamic language such as JavaScript. http://www.microsoft.com/downloads/details.aspx?FamilyID=e82db5e2-7106-419e-80b0-65cce89f06bb&displaylang=en

Install Deep Zoom Composer: - This tool allows you to prepare your images for use with the Deep Zoom feature in Silverlight 3. http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=457b17b7-52bf-4bda-87a3-fa8a4673f8bf

Download Silverlight Toolkit: -This Toolkit is a Microsoft project containing Silverlight controls, components and utilities that can be downloaded and used in your Silverlight applications. It includes full source code, samples and tests. http://silverlight.codeplex.com/releases/view/36060

Download .NET RIA Services: - Microsoft .NET RIA Services simplifies the traditional n-tier application pattern by bringing together the ASP.NET and Silverlight platforms. The RIA Services provides a pattern to write application logic that runs on the mid-tier and controls access to data for queries, changes and custom operations. http://silverlight.net/getstarted/riaservices/