I have been very happy with the humanscale freedom chair.
A height adjustable desk and a monitor arm go a long way to encouraging good posture.
The desk lets you put your keyboard and mouse at the correct height while having your chair adjusted correctly for your height, not your desks...
They will be announcing a date that the ladder will start in the next couple of weeks. They knew there would be release day problems and decided to delay the ladder.
I am definitely waiting for the ladder to try to rush a character through all the acts.