Just wanted to chime in here that Jack is pretty popular at our house. It's very cute and a nice alternative to Bob the Builder

My son is three, and he loves the nature footage (lots of deer, turtles, squirrels). The music is sweet, and the Big Kid doing the voice-overs is cute without being too chirpy. There's a clip on the site.
BTW Shoshana -- Sending good thoughts your way and hoping that your adoption goes through in record time =)