well, I know that I have to apply 10.3 first and then 10.3.1 on the
server side, but, just to make sure, is it possible to upgrade the
server in the 2 steps and then roll-out the 10.3.1 to the clients or,,
will the clients also do a 2 step upgrade ?

Hope Im making myself somewhat clear here....,
Thought I'd do the update this weekend so we wont interfere with the
users so much, and from what I gather, the 10.3.0 client hasnt been
exactly 100% in terms of login/performance,etc.