Hi Jessica
I Don't have kids, So I can not say it is from my self experience, But I've Bumped into this software that dose not cost a fortune (I think it is about 50$) and I think it is just what you were looking for it is cheap interactive and you don't have to go to Puerto Rico it is called Verbrator and I have found it in a Spanish learning programs review site
www.spanishparami.com there were few programs there but I think this one is the best for you. any way I hope that info was helpful and good luck with kids I wish I could help more.
Uri.