My only complaint with this large of a cailber is its not very forgiving on the shoulder and the pocket book.
The best advice I can give is buy as big as you can afford the first time. The problem most people run into when they start hunting has nothing to do with the gun. Browse some pawn shops and borrow weapons from friends. When you get the hang of hunting and can learn what a safe/smart shot on an animal is then you can determine what size gun to buy. Alot of people will buy huge bore guns for the extra power hunting in brush as well. One of my favorite hunting rifles that was super cheap and the ammo is as well is a mauser I built. I changed out the stock, drilled and tapped for scope mounts, cut the barrel down and bought a shit ton of ammo for under $400. It was a neat project and I can say I did all the work.