This can lead people to free open source products where they develop first an affection for then later a dependence on these open source tools.
http://www.microsoft.com/web/webmatrix/?WT.mc_id=MSCOM_EN_US_DLC_CONFIRMATION_121LMUS007468
WebMatrix is a free and gives you a web server, a database, and programming frameworks. WebMatrix lets you use both ASP.NET and PHP applications side by side.
WebMatrix includes four integrated workspaces that help you focus on different areas of your Web site. Monitor real-time web requests and configure your Web site server settings with the Site workspace. Manage your files and edit your code using the code editor with syntax highlighting in the Files workspace. Add and manage databases using the Database workspace. And last but not least, generate SEO reports and optimize your web site for search engines using tools in the Reports workspace.
Nex time someone asks me how to get started I'm going to point them to WebMatrix