Wireless Video

I'll try this again... for some reason my last post didn't get through.

OK... I am planning on broadcasting/streaming live high school sporting events next year.  I am essentially a one man show with student volunteers as helpers.  Because I don't work directly with students (although I work for a large school corporation) it is hard for me to get volunteers as needed.  I have done live sports before, and one of the biggest pains is set up and take down. Running wires half the length of a football field every Friday night doesn't grab me as fun. 

Can anybody suggest some wireless video options?  I know it's expensive, but I have a pretty decent budget.  Must have zero latency, and audio is a plus but not mandatory.  I will be plugging the cameras into a Tricaster, and have that ready to go... a pretty nice set up, actually.

Thanks for any help!