Excerpt from Gorgeously Green
There are a number of great composting bin alternatives now available. The main choice will be whether to get a spinning barrel or a regular bin design. The disadvantage with the spinner is that you have to wait until it's full—you can't keep filling and spinning because at some point you have to let the whole thing sit and compost for awhile!
The advantage is that the materials will compost faster as the pile is being oxygenated via the spinning process. If you get the conventional black bin monster, like mine, you can go on filling it daily, but you do need to turn the compost once a week and add an activator. You can purchase all of the above plus accessories from Real Goods (www.realgoods.com). If you live in an apartment that has any kind of outside area, suggest getting together with the other residents of your building to share one.