If you're coming to my half-day tutorial on building Single Page Applications with AngularJS and TypeScript and Simple.Web, there are some things you're going to need that you might not already have. I can't promise this list is exhaustive, but it's a good start.
Visual Studio 2012You'll need the TypeScript plug-in, and Web Essentials, which you should have already, but if you don't, install it from the Extensions dialog and thank me later.
You're also going to need something that can run Jasmine tests. I'll be using Resharper, but you can also use the Chutzpah extension. Either way, you'll be wanting PhantomJS installed.
SQL ServerWe're going to build an application, and it's going to need a database, so you're going need one installed. If you really hate SQL Server for some reason, you can use any database that's compatible with Simple.Data (e.g. MySQL, PostgreSQL, SQLite). SQL Express is fine, as long as you've got Management Studio so you can create tables and stuff.
to install the full Node.js package. Make sure you remember the .install part, otherwise you won't get the npm package manager, and we're going to need that.
I think that's everything, but I totally reserve the right to remember something else at 9:29 on Friday morning.