Yes -- I have taken a live Cathe class ;-) I took one of her kickboxing classes. She *DID* use the same music as I recall (cooldown was that one from Jurassic Park).
Her live class was a little harder to follow ('cause I hadn't done it a million times before)...not to mention that I'm not terribly coordinated with kickboxing combinations and will often punch myself in the face if I'm not careful. I was also so excited to be seeing her in person...that I was probably a bit distracted.
Anything she does will be fun. Unless, of course, it's a basic step class ;-) Boo! But even then I'd do a hundred right basics and a hundred left basics with a smile on my face!
I believe in miracles....JES...darn you -- I had to go download that song after you posted that!
later,
Shonie