If you're looking for strength then I would cut out some of the volume. Pick one that you want to increase strength on (ie flat bench) and work that as your primary exercises for a cycle (4-6 weeks or so). Any exercises you do after that should be supporting that primary exercise (you could do do some DB military press, dips, tricep extensions) using higher reps.

Another thing to remember: Strength gains are optimized when doing low reps. I wouldn't just go off the deep and straight to singles all the time (not to say that singles aren't a useful tool). You could cycle your rep scheme each week like 5,2,3,1 or something like that.

I'm sure some others have some more advice.

IW