cat in need of some advice, help

it is ask f-list time again for this cat.

i need advice for those who are into photography WITH a camera: i have the opportunity to buy one of these two models rather cheaply, but i am not sure what is the better choice for me.
these are my two options:

1. Canon EOS1100D
   
   
   
   • reflex-camera
   
   
   • lens 1: 18 -55mm
   
   
   • lens 2: 75-300mm (for teleradiography)
   
   
   • one battery
   
   
   • comes with bag to take around
   
   



2. Nikon D70S
   
   
   
   • reflex camera
   
   
   • lens 1: Nikon lens AF-S 18-70mm // 1:3,35 - 4,5G ED (not a clue what that means though)
   
   
   • lens 2: Nicon lens AF 70-300 // 1:4-5,6
   
   
   • comes with 2 batteries
   
   
   • backpack for the complete set
   
   

basically i will take a lot of pictures at air-shows with jets etc, and at festivals (medieval times, steam punk, street fests), and of animals - mostly horses and cows, also some parties- big events in people's life.
i have some experience with photography, but i was always just handed the camera i had to use, and the pictures turned out ok - good-ish
my main concern is that from the air-shows i will want to print out pictures in normal photo size up to A3 format...

do you guys have any advice for me? i take it all, especially has i have no clue
but no my mobile is not an option, it is a 2012 Mobile and has a 1,2 megapixel camera and for the foreseeable future i will not buy a new one
thanks for your advice in advance! it is highly appreciated