I'm around tonight and thursday night to play if any captains are on line. I would like to get one game in tonight to get the ball rolling. I'm all ready thinking of making the first round of games a 2 week window.

Or would it be better to have fixed dates ?

I think a longer window would be fine. Fixed dates can be a pain for people with dodgy schedules, and six games in a week (I think that was the plan) is probably a bit tight.