Worms in the Basement?

My sister just started composting at her house and it sounds really interesting to me. She got two types of compost bins to try them out. Here are some photos.
The first is placed outside and the sun speeds the composting process. The second is inside and red worms help turn the old food into compost. Sadly, I don't have a yard but when I get one (someday!) I will for sure try this out. For more info you can check out this website that my brother-in-law made about composting.
http://www.red-worm-composting.com/


Does anyone else out there compost already? What type of bins do you have? Any extra tips for us? Anyone have composting questions?