Anyone here trying to raise a bilingual child?

To help celebrate the Alma Awards, iVillage has a new article on raising a bilingual child:  http://www.ivillage.com/how-raise-bilingual-child/6-a-384076 as well as the amazing benefits of doing so : http://www.ivillage.com/bilingual-homes-help-babies-exercise-their-brain-study/6-a-380298

Reading these makes me really wish I had tried longer to do so with my kids! We did try for a little while but with toddler/preschooler's short attention spans, we weren't really making much progress. Has anyone here raised a bilingual child? 

Lisa