I would stick with a basic set up for strength training twice per week and, like I mentioned earlier, throw in a metabolic (circuit) style workout once per week.
I'd do strength training, for example, on Monday and Thursday and the circuit style stuff on Saturday.
All of them would be full body.
The strength training day 1 I'd do something like:
Squats (can be done any way you're comfortable with, as long as perfect form is used)
Glute Bridges
DB Bench Press
Single Arm DB Rows
Day 2 could be something like:
DB Romanian Deads
Step ups
DB Rows
Push-ups
On both days you can throw minor stuff for your arms in at the end. You can/should throw some stuff in for the core too towards the end.
Also, those routines are soooo not written in stone... just some basic ideas.
For the circuit, what you do isn't so much important compared to how you do it. Large exercises that incorporate a lot of muscle are still best but you want to use drastically less weight than you do on your strength days and go for higher reps and less rest between sets. There's no real hard-fast rules on how to set it up.
One thought would be to pick 5-10 exercises. You'd do one set of each, and then cycle back through.
It could look something like:
Bodyweight squats x 15-20
Romanian deads x 15-20
DB Rows x 15-20
DB Overhead Press x 15-20
Pushups x 15-20
Once at the last exercise, start back at the first. Two to three times through that should leave you pretty gassed. You want minimal to no rest between exercises.
You could throw in nonconventional stuff too like mountain climbers for instance.
The goal here is to expend energy. It's a blend of cardio and weights.