Thanks for the answers, but I'm still hoping for more ideas. I have a tumbler composter, but have always been interested in worm composting. I guess I am wondering if it is worth buying, or just stick with what I'm doing. I am growing all my vegetables, flowers in containers now, so the worm idea seemed a practical way to get rid of kitchen waste and have worm compost for my containers.
The worm bins need to be kept warm (ie: not outside in the winter) a "regular" compost bin can go trough freeze thaw better...it the compost bin is small it may go dormant during the winter as the cold temps slow or stop biological activity.
I Live in Mesquite Nevada and have been raising AWESOME Gardens for 8 yrs on worm castings...Well worth the Effort...We Bring ours inside when it Gets to HOT...Worms are in a Half 40 gal Barrel...Me and My Friends have the Best Looking Gardens in Town...No Kitchen waste Goes to waste...
Neva, I have 2 tumbler composters. When I want more worms I dig a small hole and put a little compost into it. Later I take coffee grounds and throw them on top of that area. It doesn't take long for worms to show up & do their job. The birds that love worms know where to dig.
Vermi-composting is a great way to compost "kitchen waste" it is a good scaled down version of what many folks use in a garden type setting.
http://en.wikipedia.org/wiki/Vermicompost