You can install and use the express version of Visual Studio, which can be found there:
<a href=”http://www.microsoft.com/visualstudio/en-us/products/2010-editions/express”>Visual Studio 2010 Express Products</a>
You can also use the express edition of SQL Server, which can be found in the above link as well.
MySQL can also be downloaded and used for free. Here’s a link:
<a href=”http://dev.mysql.com/downloads/mysql/”>Download MySQL Community Server</a>
There is no free version of Access, so you would need an Office license.