I have a small foldiong table that has become my computer table. I have the twin bed setup and this area has become my lounge/office. One overhead bin stores all of my files, books and papers that I need for work. My printer tucks away under one of the twin beds. Eventually I might remove one of the twins and create a desk with cabinets and an entertainment centre of sorts. Right now, the small table and storage as described works very well for my needs. The twin bed that I sit on is even large enough for me to use as a layout space if I need to refer to blueprints.
Here's a photo