I'll take the devil's advocate position. Don't get the gun unless you need a gun that fills a niche that your 7mm or 300 won't handle well. Your money is much better spent on a hunting trip. Remember that you'll need accessories, like a scope, base, and rings, which can easily add up to $500 in addition to the cost of the rifle and any reloading supplies or ammo that you buy.
I've got a .375 and actually have some good applications for it that I don't want to use a .270 for. For openers, bison hunting. The .270 will do it, but the .375 is just a better choice. Likewise for bear and moose. The .270 will do it, but the .375 is a better choice.
Another option to consider is the .338 Win Mag. It's got the trajectory of your 7mm and has plenty of power and penetration. It's also more suitable for a lighter rifle.