Dewalt 20 Volt Brushless Screw Gun with Auto Loader.
The DEWALT brushless drywall Screw gun features a DEWALT brushless motor that delivers superior performance and maximum run time. The Screw gun offers superior performance and fast application speed along with maximum speed and control and high torque capability for wide range of applications. It is ergonomically designed for less worker fatigue, and provides optimum runtime for a variety of jobs. Cone-lock™ nosecone locks on securely and is easily removed. A belt hook is included for portability as well as LED light for visibility in tight spaces. Includes: carry bag, 2 batteries and a charger
The best part of this is the auto loader. This is perfect if you are drywalling alone. You can buy the screw strips at any HD or Lowes. I drywalled most of my house and I couldn't have done it with out this tool.
I wouldn't use the auto loader on steel stud applications. I was not able to master that but maybe you can.
https://www.youtube.com/watch?v=c_zM702eiBs