I really think that it's important to have a good chair, one that is appropriate for a person's height and weight as well as placement against their desk or working area. I actually need one now, too. The chair I'm using was made for a shorter person with a different body type than mine, and it isn't always the most comfortable. It can only be adjusted so much.
Leather Office Chairs come in many different styles, and this one isn't the right one for me. When I get a chance and save up enough money, I need to get a chair that's going to help with my back.
Believe me, when you're at the computer as much as I am, it's important to have a good chair to sit in.