Are you stuck on the two 'Zukes? Because the DR650 is way too heavy for you, and the DRZ has it's own limits-gearbox, tall seat, suspension, etc.
A WR250R would be much better suited for the riding you described and your height/weight.
In any case, good luck.
Wedding(s) = $30,000
Divorce(s) = $25,000
2009 Husky TE610