I became interested in carnivourous plants and bought a couple... a venus fly trap, a sundew, and a pitcher plant. They all seemed to do really well under a plant light and sufficient filtered water.

http://www.flickr.com/photos/theblackstock/2320835524/

http://www.flickr.com/photos/amortize/1123445363/

http://www.flickr.com/photos/sabertasche2/446716500/

The cacti was grown from seeds we were given for fun in 2nd grade... magically, mine seemed to flourish in the conditions I gave it.

http://www.flickr.com/photos/deeporbit/3706994943/