I love Turbo Jam. Currently my favorite is Punch, Kick & Jam. I use weighted gloves with my Turbo Jam workouts, and find them to be a lot of fun and also a very effective workout. It's all in what you put into it. You can make them as high intensity as you want. I always sweat tons and have a good time while working out at the same time. Intensity wise, I would say they aren't as intense as Cathe, but for variety, I would definitely add them to my workout collection.
I do Cathe, Tae-bo and Turbo-Jam, and I can tell you, my workouts are always fresh and never boring, because I rotate them and therefore keep my workouts fresh. Let us know if you get Turbo Jam, and what you think of them.
Iris