im getting my h1000 for under 50$ so i think itl be worth it (it comes with its little baggie so thats a plus). i would get the newton 2100 but theres no listings for it where i live for under 100 atleast.
i have rechargable aa betteries that i can use with the newton so i think il be fine interns of batteries
i think my rechargables are 1.5v