Here are some links for Microblaze for the Spartan 3E board.

Here is some information on debouncing the Spartan 3E with VHDL

The tutorials below are a combination of various ISE versions created by different folks.  They are designed to take a person from no knowledge of ISE, simulation or VHDL and bring them to a level of basic competence.  Many links now include videos.

Here is a series of laboratory materials and tutorials that were developed under funding from the National Science Foundation. These items were created using Xilinx ISE version 1Z.X and the Digilent NEXYSZ boards. http://vhdl_fpgas.ece.unm.edu/index.php/Main_Page