The .325WSM is way more gun than you need according to your list of game.
I prefer (and shoot everything with) the .300 Win Mag because of it's supperior balistics to the 30-06. Flatter shooting, harding hitting, with not much more kick.
If you're in a remote area you might consider what ammo your local sporting goods store is likely to carry. Might sway my thinking. If it's hard to get .300WM ammo, and always can get 30-06, you'd maybe consider the '06.

As far as brands of guns . . . I like Ruger. I think they now make a great and reliable rifle with excellent scope mounts and 3 possition safety, and won't hurt the bank book either.
But the next rifle I get (something for varmint/very small game) I will probably seriously consider a Savage. Don't get the cheapest, nor the most expensive, but choose from the middle ground. Savage has a popular, and broadreputaion for being one of the most accurate guns right out of the box. They have several guns that are a package which includes mounts and scope for a very reasonable price. I personnally would not get this because I would want a different scope than what comes with them.

Go to the gun section of these forums for more search and imput.