Here is a nifty gadget for DJs, digital producers, and musicians that shows them what they are doing with their software. The VMeter USB Controller is a touch-sensitive control strip with a bar of glowing LEDs. You can map the controller to a knob in your software and move up and down the strip to control your software. You can create some cool effects with this.
The VMeter is great for live shows with its LED lights. It is compatible with Ableton, Reason, Logic, Torque DJ, and other software solutions. Sets you back $48.