@Scrbblchick -- I can't imagine trying to make my own yogurt. For me, that would be an accident waiting to happen.
With all the Greek yogurt brands available in grocery stores these days, there's really not much need to make your own. I've had the Greek yogurt brands and I liked them. If you still think they're not thick enough I guess you can get some Greek yogurt and strain it overnight through some cheesecloth. That should make a really thick end result.
I like Greek yogurt in the traditional way: with a spoonful of honey and walnuts or almonds. Or pecans, if they're in season. Dried cranberries are also good with it.