Simultaneously Reading Two Analog Inputs with Arduino

spycatcher2k:
Reported for crossposting

My bad... my first post in Arduino forum... I have now deleted the other post

Robin2:
What are you trying to sample?

I am trying to measure the extent of Imbalance in a rotor using 2 piezo-electric sensors... And I want to check it at 2 different positions (hence 2 sensors)
What I want is to plot the graph of those 2 sensors (and they should be in phase).