Have you checked out the products from the Reliable Corporation?
http://www.reliablecorporation.com/Products/Home-Irons
I don't have a pressure steam iron, but I have their V100 and like it. Previously I had a Rowenta that I loved, but it quickly broke, customer service from their one and only West Coast service center was probably the worst I've ever received in my life, and as a result I no longer buy Rowentas. I had a slight problem with a reconditioned V100 and the Reliable Corporation quickly sent me a new iron. I'm sold on that company's service. Sorry I don't know anything about pressure steam systems though.