I am looking for one too after the stool I was using collapsed while I was sitting on it. Yikes!
Anyway, I think I want one without wheels because I have laminate flooring and a sitdown quilting machine. My current office chair rolls too easily when I am moving the quilt around under the needle. And is also a tad too low for ergonomics.
I found this one made by Reliable but I worry that it may still be a bit short.
http://www.walmart.com/ip/43853803?w...958216&veh=sem
Watching this thread to see what y'all use and like.