Not a cricket fan myself.. I couldnt sit and watch a game.. but then I am the type who cant sit on a beach doing nothing... I can photograph a game of cricket as that constitutes doing summat
A one day match should be better for a first timer IMHO and in australia I imagine its not as relaxed and quiet as here...should be fun and at the end of the day its another experience for you to tick off ... I would say enjoy but I bet ya will hehe