Hi Anna,
I tell you what I have in the non-Cathe kickboxing workouts:
-All 3 PowerStrikes Millenium Series
-Tae Bo "Get Ripped Advanced" 2-pk set
-Tae Bo Advanced & Tae Bo Basic Workout
-CIA Cardio Strike Zone + BootCamp (an odd little workout!)
-Aaron Lankford's PowerKicks
-Gilad's Cardio Strike & Cardio Blast (1/2 kickbox and 1/2 hi/lo)
Now, from CIA on down is more intermediate level kickboxing, but they work for lighter days in a pinch!

And Gilad's videos barely count as kickboxing, but they're better than nothing and great to add on to a lower body weights day. (IMO)
PowerStrike and TaeBo are the only advanced level kickboxing I own other than Cathe's which is why I'd LOVE another kickboxing workout from her!

I'm always on the look out for good workouts should anyone have any suggestions, but it's hard to find a style I really like. I LOVE both Cathe and Billy Blanks, but I'm always open to try new workouts as long as they're intense. I HATE to waste money on bad videos!

Which is why I label the CIA workout odd. It's not bad, just a little odd, as it's kickboxing with a flavor of athletic other stuff?
Donna
Fitness~ It's a journey, not a race!