I would definently take a look at the X Bolt. I just bought a X Bolt in 7mm WSM Medallion and I love it. I looked at the A Bolt also but there were a few things I liked better on the X Bolt.

Here is why I picked the X Bolt-
-Detachable Magazine (Some people have complained about it being made of 'plastic', but it is actually very tough and light)
-Bolt Unlock Button (Basically, if you have a round chambered you don't have to take the safety off to open the bolt and remove the round)
-Looks very good!
-Great Trigger and it's adjustable, breaks very nicely, it actually scared me the first time I shot it because, it took a lot less than my Remington 700. It is set at about 3 1/2 from the factory.