Here are two options I liked from Target:
and one from IKEA:
I will continue searching around, but option one is the current leader. I love that the design is bold, but neutral. I will most likely paint the legs white to coordinate with the desk and the rest of the room.
Any ideas on where else to look? I want something with a cushion on the bottom and back like the ones above. If it is comfortable, I will be more likely to stay focused longer :)