need a new office/computer chair  

hey all! just wondering, as i sit here in pain, ha ha, what kind of chairs do you guys use at your computer desks? we got a cheapo one years ago, and it doesn't support our backs at all anymore. so i sit here as straight as i can, but my back, in between my shoulder blades burns. we NEED a new chair. do you guys have any ideas for me, brands or where the best place to go to buy a good chair is? and is there any way i may be able to get it UNDER $100?? i need to be able to sit upright and lean back and still reach the keyboard to type...it's not fun right now!! any suggestions?

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