If your system is still largely VGA-based, it's probably time to bring it into the 21st century.  We can analyze your setup and determine what can be carried forward.  Typically, the existing audio system can be re-utilized.

Enjoy the added sharpness, and color reproduction that HDMI will bring to your presentation, for less money than you might expect.

Perhaps it's time to add audio or video conferencing capability to your system, to save on travel costs.  There are many options available!