Hello John,
I think you've come to the wrong place in your search for an ersatz steel/slide guitar.
The only example of this kind of thing, that I've heard, is in the program Band In A Box. Pretty good, but no where near as juicy as the real thing. As a committed midi user, since the Atari days, I'd recommend, getting a steel, rolling up your sleeves and bringing a bit of balance to your musical experience. Come on down, you'll love it