Not just lots of outlets, if possible you need at least TWO dedicated electrical circuits for your room. Each home circuit carries max about 1500 watts. A steam iron will use up nearly one full circuit just itself. Depending on the type of lighting you'll have, three circuits might even be better. If you run your iron on the same circuit with lights, you'll probably get the dreaded lights flickering thing going on.
LOTS of light. I like track lighting because it is easy to adjust to each work area.
Hard flooring is my favorite, or very low (office type) carpet.