I never really considered seating for my kids' rooms an important element. After all, how much do they actually sit? But with two kids in elementary school now, I often find them reading books or looking at magazines (Boys' Life, anyone?) while sprawled on the floor. Perhaps they could use a chair or two in their rooms.
I've rounded up some sleek modern chairs that are designed with kids in mind. While not all of them are appropriate for reading, they are definitely all fun.
(Images: as linked above)