Children's Foreign Language Classes?

I want to introduce our sons (4 & 5) to some foreign language experience this summer, as I know that the younger children are, the better they can learn a foreign language. Does anyone have a good recommendation for a foreign language school or summer camp for young children that is reasonably priced?

I have not used this program but saw it on kidsdirectory magazine... www.LilLinguists.com I know that Parent Map, Seattle's Child and Kids Directory seem to have pretty good resource guides for Families. Good Luck!