Angela:
when I started out kickboxing it was with Alain Bissanthe's BOdy Bar Kickbox Circuit video. Compared to a Cathe routine, it's at intermediate level, so probably right where you are. He does 5 minutes of strength training with the body bar, I would use dumbells or just body weight, but the neat thing is, the moves are specific to help you excel at particular kickboxing moves. Then he uses the slo-mo techniques he's taught you in a 5 min cardio routine. And then you repeat for 5 or 6 cycles, I can't remember, it's been a while..
But what I'm saying is that he will teach correct form on kicks, and strengthen your muscles to help you perform them better also. Then you practice full kicks at tempo in a mini-routine. So it all blends together.
He's a charming man, very well-muscled, less verbal-bolshiness than the Tae Bo guy, and I think it is well choreographed. Keli Roberts features with him, as she does on Kathy SMith's tape, which I also have, and she throws all her energy into it, so she's good to watch.
I got my copy from collage several years ago. DO the body bar people have their own website? Maybe you see clips from it there. And if you want to borrow my copy for a while, just email me and let me know. I haven't used it for a year now...
Stay healthy,
Clare