From simple utilities to full business systems, I have used many languages to create a variety of solutions, including:

• Delphi (Perhaps the most underrated GUI language)
• VB (Perhaps the most overrated GUI language)
• Java
  
• C++
• C#
• Perl
• Ruby
  
• Microsoft Access*
• Pascal

Most of my work experience involves data driven applications.

*Building business systems with MS Access is not recommended by Microsoft.  It is a very easy way to develop data driven applications, but the limitations outweigh the benefits.