As long as we're the ones coding and building the machines then I don't see a problem with them. My favorite add-on pack was the one that selected Bush whenever you depressed the box next to Kerry's name -- that was classic.
I like the idea of the EVS with printed receipt like in Nevada. My point is that an accurate count of the vote favors republicans. I think the Dems know this and that is why they are attacking the accurate systems. They would rather have paper ballots only that can easily be tampered with. Just like the "good ole days".