I couldn't find the ones with arm rests, but here is one from One Kings Lane.
I think you can get knockoffs as well for even cheaper, not sure of quality. :)
I love how the work area is incorporated into the living room. The organized shelving system is kept visually appealing with straw baskets and patterned pillows and chair make the space totally welcoming.
Like the concept of natural lighting, a peaceful place to relax -- take a nap, read a book, quiet conversation with a loved one. Draperies can be drawn to watch a movie or darken the room for a nap. I would replace the desk with something else ... don't know what. I like the colors.