If you're going to outfit your home office, you should select furnishings that appeal to your own personal sense of style. This will help you get your mind where it needs to be when you're working from home. My personal style is very eclectic. I like the warmth of wood and the comfort of upholstery. I also like to have southwestern decorations around me.
Whether you favor modern furniture, mission style furniture, antique furniture, or a mix of all, just be yourself in your own office. You will be able to work more efficiently and more effectively if you are comfortable in your surroundings.