Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Most people tend to think of the terminal as boring. But here I will list a number of choices you can pick to snaz it up a bit. The following applications can increase the usability and the speed in which you use a terminal, from drop down screens, syntax highlighting, or having multiple terminals in one window.
Yakuake - Yet another Kuake KDE terminal emulator.
Yakuake gives you a drop down screen for your terminal. Simply start the application and assign the key to make the terminal window drop down and bang away on the keyboard until you need it out of your sight. Yakuake is based on Konsole so you can theme it just the same. It also allows you to adjust the width, height and screen placement.
Or lets say you want QuadKonsole goodness, but on a GTK application? Then you need Multi-Gnome Terminal. This is in most distributions repositories, if not you can obtain this here: http://multignometerm.sourceforge.net/