Ok thanks,
Humm, ok.
I was thinking the max difference between base going high and the transistor turning on/off is 300ns, do i have to buffer it? or are there any other inverters i could use (I have quite a few logic chips around, i know i have some hex inverters somewhere, could i use this???)
I will have control of the enable pins, so when idle state is needed i can turn the h-bidge off. The only problem was with the PWM on the enable pins i had to put pwm to 100% and put the direction pins to both on / off which meant extra overhead.
Putting PWM to 50% and then putting a pin low is not as difficult, anyhow, there should be no real problems with power draw when idle.