I am planning to home roast coffee (for the first time) and understand that certain models of hot air popcorn poppers (those with side vents as opposed to mesh vents) are good for beginner roasters. Sweet Maria's coffee site lists several models that work: The West Bend Poppery II, The Popcorn Pumper, and the Popaire 2 by Hamilton Beach, but I haven't been able to find any of them (they may no longer be produced). I would prefer to pick one up at a store (NYC metro area), but would order online too. Any suggestions for where to get one, or info on other specific models that are suitable for home coffee roasting? Thanks.