My not-so-trusty computer desk chair is broken (again) and I'm fed up fixing it.Where can I get a comfortable chair?It must have wheels and armrests, adjustable height and backrest, ohand the backrest should be head high.In short, it should look like this:I know I may have to spend upwards of 1K, but at this point, I'm fed up ofthese 700-dollar chairs that just don't last.Anybody?