D!, we decided to add an open shelving unit with big drawers at the bottom to the left of it. Our goal with this unit was to take all the things that would typically sit on the counters and stack store them on the shelving (thereby keeping our limited counter space free and workable.) The shelving unit is from the Martha Stewart for Home Depot Office Collection, and not the Kitchen Collection. However, both the collections use the same cabinet styles and finishes, so it was an easy swap-in.
If the entertainment center has a slide-out shelf, keep it intact to use as a pull-out folding surface. Paint the entire piece of furniture and all shelves with high-gloss paint for a durable, washable finish.