First, will you be shooting in daylight? This makes a BIG difference as you have to compromise more if there is not enough light.
As others have said, IS is not that needed for sports. Generally you want a shutter speed above 1/800th of a second to reasonably well "freeze" the player's action (on close ups, hand and foot motion will still be pretty blurry at 1/800th).
I have seen others suggesting in the 70-200mm range and in my opinion, that is NOT enough. Even roaming the sidelines, the players are going to be a long way away on the far sideline. I have shot Soccer from the sidelines with a 70-200F2.8L and it was not long enough. I would be looking at:
Sigma 50-500mm (big and heavy, but the focal length range is made for Football and Soccer).
Canon 100-400IS. A well regarded lens for this type of use. You get IS which can be useful sometimes but not a much for sports (although in the IS MODE-2 you can get some interesting "panning" shots).
Canon 75-300. From what I remember reading, the non-IS but with USM version is the one to get.
Personally, I now have the Canon 100-400IS. It is a wonderful lens. The range on the Sigma 50-500mm would be really nice though.
What would be a good lense (note good,not ideal $$) for this type
of situation? i would be close to the action,on sidelines,and be
able to move the lenth of the field. I am considering a IS lense
since i am not as steady as i would like to be at longer focal
lenths. I am not sure how this would be with a moving subject at a
high shutter speed. Thanks