Okay, I should have recognized the question as coming from someone who was totally probing with very little background.
I suggest you or someone start reading and attending every meeting on ranching within 300 miles. Start that now to get a handle on what you're in for.
I'm usually very shy about linking to outside sources from Dirt Doctor, but I'm going to suggest a few and let you find them yourself.
Stockman Grass Farmer
Holistic Resource Management of Texas
Holistic Resource Management
Bud Williams stockmanship
Iowa Beef Center
"You Can Farm"
Basic Livestock Handling
Center for Grazinglands and Ranch Management
Purdue Pasture Management
"No Risk Ranching: Custom Grazing on Leased Land"
"Low Stress Methods for Moving and Herding Cattle on Pastures, Paddocks, and large Feedlot Pens"
And there is one website I will give you because it's too fantastic to believe without seeing it for yourself.
http://website.lineone.net/~s.ward/MIN/ ... attle.html
The picture at the top of the page shows sort of before and after of using cattle to reclaim a strip mine tailings. You can see the grass on the left with a pipeline separating the non-reclaimed area on the right. I've personally driven past those hills at least 100 times in my life as my cousins lived in that town. I can vouch for the fact that the hills have been completely barren since the 1950s when my cousins moved there. Weeds didn't even grow in the sterile dust. Now they are covered with grass. And this is without irrigation and in the dead center middle of the Arizona desert.