For me I don't mind either way. I am thinking of declared actions so we can post round x's actions then Tim will post last with a summary of how the events played out. We would probably need to do a primary/secondary and maybe tertiary action if complicated. But it might be faster.
It is a little chaotic but again i think it is because it is our first combat.
And I agree with Eric (Did I just say that) For combat finding a common time so we can do a bunch of posts at once for a combat, would be the most efficient and that is how it was done the last game I played in.