Basically, any Cathe workout that is not HiiT, Intensity, Crossfire, To the Max, RWH, Tabata anything.
You could use most of Xtrain (omit Tabatacise for now) and LIS (go easy on Afterburn) series to help you with this goal, and any time Cathe does a push up, just do a different move, that's what I do! Ditto on burpees, a most hideous exercise!
How about also most of the Intensity series (saving Imax 2 for later) and most of the Body Blast series too, also the latest, un-named releases before RWH: the lower body weights workouts in that series would be useful to you, in addition to Party Rockin' Step 1 and 2. The total body weight DVDs from those 2 series (Intensity, BB) would be excellent right now for you (and me, I'm in the same boat).
Also, Rhythmic Step, Step Blast and Cardio & Weights: while advanced in level, they do not involve endless HiiT that your muscles might not yet be ready for (as mine aren't yet either).
If you have any Kelly Coffey Meyer DVDs, they are perfect for starting back and easing back into Cathe, they are as intense as you choose to make them, but more forgiving for come-backs than Cathe's stuff.
Good luck to both of us......!
Clare