RE: 270 WSM or 270 Win?
I' m with JamesB.
I just bought a Synthetic Stalker in .270Win. I considered the WSM, but after finding and pricing ammo, I decided on the .270Win pretty quickly. If you reload, then get whatever you want. But for someone like me who only hunts whitetails and the occasional mule deer, no need for the hassle of owning a WSM.
.270 is more than enough gun for the hunting that I do. I don' t think that a deer is going to care that the bullet that kills him is going 200fps fater out of a .270WSM.