Perhaps a large round table might mean a rug is not at all necessary. It could be a metal tray table, or carved wood like Rebecca Mitchell Interiors illustrates. Ideas also to consider, using multiple tables can be found at http://www.houzz.com/multiple-coffee-tables. I also agree with comments above that some color is needed on the walls. You could then hang round mirrors, or an unusual curved shape like RMI shows above.

Hi, you can nicely put a beautiful runner on the center of the table, with placemats, bamboo tray with all accessories like salt and pepper, paper napkin, nice cutlery, LED candle, you have lot of options. check pinterest for more designs.

you can go for wall mount full size mirror next to the computer table as converting it will not give good results

Introducing a rotatable dining table streamlines serving and maximizes space utilization. With its versatile design, diners can access multiple dishes without constant movement. Opting for a single focal light fixture above the oval or round table enhances ambiance and functionality, creating a well-lit and inviting dining area.