Thank you Mr Chase, enjoyed meeting you at the show even if you think the Inspiration a toy. A rebreather is a world away from open circuit, although everybody on this site seems to spend a considerable amount of time debating which is the best and some owners do get quite emotional about it. I find that strange.
Rebreather divers should take time out to try other units, and not just one dive.
Anyway booster pumps look at
Home Page
Reliable, compact and value for money.