RE: Smiley!
I'm very flattered to be asked for my opinion!
I think what you've listed as a re-shuffling of your current program sounds like it could yield some pretty positive results. I must confess: I personally do not use Cathe routines for strength training; nothing against Cathe, mind you, it's just that I vastly prefer to strength train in absolute silence and at my own personal movement speed. Thus, I think you're well-put to trust YOUR own judgment as to the strength training routines you wish to do. It's my understanding that the Pyramid workouts are more strength oriented, and I do think those should be brought in. Also find some room for the Slow And Heavy Series if you have that, as it is billed as a series for premium strength gains.
IMHO, knowing each of the cardio routines you've listed, it might be fun and productive to schedule the cardios as follows: I-Max 1, Cardio-Weights, I-Max 2 and Circuit Max. And then layer in each of the weight-lifting-only routines sequentially each week.
Keep in mind that much depends on a person's individual physical make-up, especially in terms of limb length and muscle fiber distribution, when trying to craft a workable routine. Try giving your schedule a spin for about 4-6 weeks.
Another thing to consider for the future: perhaps change your schedule to a 5-workout-per-week schedule, trying for longer-duration workouts, so that you can go heavier in intensity for both cardio and strength training and have an extra rest day. I find that a 5-workout-per-week schedule is optimum for me, for physical and mental rest purposes, leaving me fresher and able to go b@lls to the wall in my workouts.
Just some thoughts. Hope they're of some use to you. Let us know how you get on!
A-Jock