SPORTS: Advice please - Shooting AFL (aussie rules) in bad weather.

Hi all, i am going to be doing a sports shoot tomorrow of my school AFL teams knockout grandfinal, unfortuently the weather isnt looking to good, with possible rains the whole time.

I will be using my Xti with my 70-200, i know that it might not be long enough on many occasions but i dont have anything better to use.

what would be the settings to use, full manual, TV or ....?

what could i do about the rain to make sure i dont get the lens or camera wet?

would it be best to shoot in RAW or jpeg?

all advice would be greatly appreciated, and is needed, thanks all

Cheers, Nic

Hey man i have the same camera but i have a 80-200 lens anyway i would recommend shooting raw and full manual thats the way i do it now in the rain im sorry man but i got no advice there, im still a novice so i dont know all the ropes like the rest of these guys but those are my opinions, as long as you got a 4 gig card you should be ok, i think?