I'm a student in the Graphic Design department at RISD and I really appreciate that you have these video podcasts! RISD gave us a subscription to Lynda, which was incredible, but the subscription wore off before we had time to use it (having too much work to find the time to watch the videos). mostly we just have to learn on the go and ask each other, but I appreciate that you have your podcast because, when I do find the time, the videos are immensely thorough and helpful.
I have CS4 and after reading through your list of things that are new about CS5 I'm jealous because a lot of them are things that I was frustrated about with CS4 (like scaling all at once, and scaling using dragging rather than percentages, and rotating without using a separate tool the way you can in Illustrator, and having the layers be detailed lists the way they are in Illustrator. I love layers, but in InDesign CS4 they're useless except for making guides.) so this is my longwinded way of saying a huge thank you thank you thank you!!!