My friend T couldn't get blogger to let her leave a comment on my blog (weird. I'm looking into it, T, no worries). But she sent me a more direct message suggesting I take a look at someone's work on youtube, a guy calling himself CaptainValor, who evidently posts videos with both sound and signs, which is perfect for our summer school plans for learning sign language.
In particular, T recommended this video. ~happy sigh~ my friend knows me so well!