Here are some relevant links on Ravana (other sp include Ravanna, Ravenna, etc). The top one is my favorite and is a fast read with some images from an Indian festival. The second is a very thorough character analyses of Ravana in the context of the Ramayana. The last is a pretty picture.
Incidentally - the name of Rama's wife in the epic was Sita. Mea Culpa.
http://www.maxwell.syr.edu/maxpages/special/ramayana/story.htmhttp://www.geocities.com/Athens/Olympus/3588/ravana.htmhttp://www.indiadivine.org/ramayana-ravana-sita-lakshmana1.htmhttp://www.artoflegendindia.com/details/PIAA022/