My DH got me the perfect chair for my birthday last year at Office Max. It is a fully adjustable manager's chair that has a memory foam lumbar support. You can put the arms on or leave them off. Up, down, tilt, recline, roll about .... ahhhh. My poor aching back loves this chair. :-) I didn't have a chair mat, so I put a half sheet of left over pegboard on the carpet (white side up so I can see what I drop) ... works like a charm!