An Atari 800XL with external floppy drive and a "letter quality" printer - basically a noisy-ass automatic electric typewriter, but it did look more professional than dot-matrix!
The floppy was a brilliant piece of design. The drive mechanism used a pulley system and one side had no groove, so the rubber band would periodically slip off and you'd have to open it up to put it back on again. I had this happen after writing a 20+ page paper that I hadn't saved yet. Needless to say after having to completely re-write it I saved often!