My low-level advice: base your stakes off of what you are used to playing for in a tournament. So if you do $20 tournaments, set your blinds so that a $20 buy in gets you something like 100 or 200 big blinds (so, .10/.20 or .05/.10 accordingly). This means that essentially the same amount of money is "at risk", but it's done in a different format.
From a chipping perspective, maybe consider non-denom chips for a bit before you get your stakes dialed in. That way you don't pay out the nose for a microstakes set only to find that your players really want to play $1/$2.
Also, remind people that a cash game is not a tournament game. Sounds silly, but sometimes people need to be reminded that they can cash out whatever they have in front of them when they are done playing rather than feeling they have to get reckless with a "short stack". Maybe that's desirable to some, but I think it leads to a negative patte