I have Ultimate Bootcamp, but I can't remember when I've last done that one. I should pull it out soon. I was actually just going through some of my Tae Bo workouts last week and plan to work in the Tae Bo Express and T3 DVDS to my workouts this month. I've been on another FIRM kick lately though (I always come back to The FIRM.. love their workouts!), but I also have a special place in my heart for Tae Bo. I started Tae Bo back in the days of his VHS Infomercials!
I always get such a great workout with Tae Bo, not to mention a FUN workout! But I'm one of those who love kickboxing, so that helps too, I'm sure.