I would determine wheither your upper body needs work compared to your lower body. I would not work out your upper and lower body using the same frequency. Once you determine what you need to bring up, develope your routine on that, and when the way your body looks, change the ratios.
Lets say you are happy with you upper body verses lower body symetry, I would workout 4 days a week. If you do not want to workout on the weekend, something like this would work. Lets say you want to build up your upperbody more then your lower body:
Week 1
Monday - Upperbody Strength Day
Tuesday - Lowerbody Speed Day (does not really tax your system)
Wednsday - Upperbody Speed Day
Thursday - Lowerbody Strength Day
Friday - Upperbody Speed Day
Saturday - rest
Sunday - rest
In reality, what I do is deternmin how my muscles feel. Lets say you want to priortize your upperbody and it feels fresh, do Strength Day upperbody.
If you are relatively happy with your lower legs, and they are fresh, and you want to bring up your hamstrings, priortize hamstrings then quads and do a Strength Day leg workout the following day.
The next day, if you feel tired. Rest and do not go to the gym.
The following day, if you feel that both your upper and lower body feels good but a little too tired, do Speed Day on your upperbody if that is your weakpoint.
Next day, if your legs are fresh, and your believe your legs are not too big, do Strength Day for legs.
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Basically, each day you determine what would be best to build your body according to your prototype. With only a 2 day split, you do not have much choice. I use a 4 way split :
Priotized:
Back/Biceps
Chest/Triceps
Shoulders/Lats
Quads/Hamstrings
These are Phase I exercises which I do not superset.
Phase II in the workout I superset level III exercises with my subsiderary muscles groups.
Abs
Calves
Glutes
For example in Phase II
On Back Day, it is:
Seated Concentration Bicep Curl supersetted with Weighted Ab Crunchs.
In order to determine which subsiderary muscle to use in Phase II, again, weak point evaluation.
In the end, everything changes day to day depending on my weak points and priortization.
I generally only use Speed Day as a quasi rest day, where my muscle are tired, but not fatiqued and my neurological system is good compared to the option of a rest day.
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Keep up the great job & healthy recovery
oh thank goodness... I was thinking what the hell is she eating....hahahhahahahahahhhahahaha
mmmm!! Eyeballs!! 
Lol 
