nmon - This systems administrator, tuner, benchmark tool gives you a huge amount of important performance...

Rufus - Rufus is a piece of software that allows you to transform a portable drive, like a flash drive or other USB drives, into a bootable drive that can be used for a variety of purposes. Read more about Rufus.

iftop - iftop does for network usage what top(1) does for CPU usage.

SUSE Studio ImageWriter - Utility for writing raw disk images & hybrid isos to USB keys.

vtop - vtop is a graphical command-line tool that uses unicode braille to chart CPU and memory usage.

USBImager - A very minimal GUI app that can write compressed disk images to USB drives.