Yep, Wayne (dekaybrown) and I can tell you about them.
Care is pretty much the same as garters; but these guys like slugs a lot more. Worms are good too. Wayne says he never has trouble with getting them to eat; I've had a bit in the past but nowadays I've found that all you need is a steady hand and some worm guts.
Just treat him/her like a garter, plenty of good drinking water and hides, and offer him/her chopped nightcrawler/worm bits or slugs. You can add some calcium or vitamins to the worms if you want; it may help a little.
These snakes are a leetle more personable than garters; they'll warm up to YOU faster, I mean.
**EDIT- I don't keep my dekay's with any supplemental heating and they do fine.