Will do - fired up and ready to start when I get T25 delivered!
I'm in a similar situation as you Kimber. At 39 I weighed 240 and felt like crap. Got my diet under control, started working out with one of my old high school buddies (he never stopped working out after high school). I got down to 185 and have maintained that weight +/- 5 to 7 pounds for ten years now. I got tired of the old traditional weight program and started P90X but also hate listening to Tony. About 3 years ago I started doing the Insanity/P90 hybrid workouts with pretty good results. Due to an old knee injury, I'm facing total knee replacement in a few years so I cannot do the higher impact stuff.
I now have a rowing machine for some light cardio and I do SOME of the P90/Insanity workouts (I just have to skip the jumping stuff). I also do a high rep/light weight workout. I'm looking to stay toned moreso than add alot of strenght. I like your 20 minute workout and plan to incorporate that into my routine.
This high rep/light weight workout was given to me by a co-worker. He's 51 and looks like a body builder. He does this every day and has for years. I only do it 3 times a week but you might be interested in trying it. If you do the entire workout it takes roughly an hour. If time is limited I scale back the sets accordingly:
Flat bench: 20 sets of 10 with 30 seconds rest between sets.
2 minute rest
Concentration curl/french curl(dumbells): 10 sets of 10 with 45 seconds of rest between sets.
2 minute rest
Military press: 5 sets of 12 with 1 minute rest between sets.
Shoulder fly: 1 set of 15
1 minute rest
Seated bent over back fly: 3 sets of 12 with 30 seconds of rest between sets.
If you do the complete workout you'll do 711 reps in just under an hour. It keeps the heart rate elevated pretty good too.