Get a PC connected Dymo. You'll be amazed how often you want to set up the labels on the computer first. You can do multiple fonts, dual lines of text, pictures/figures, all sorts of stuff. Also, it's far easier and more efficient to put together all of your labels at once, then print a 2 foot long string and cut it apart...it STINKS trying to do that with the tiny keyboard on the machine itself, but it's trivial using the computer.
I have a Dymo Ryno 6000 at work, it's the industrial line. Mine has built in electrical schematics, pre-designed label sizes for breaker boxes, all sorts of things that are very specific for a technician, and none of which I ever find a need for
