My suggestion is to buy a used one in good shape. Make sure it is at least 5-7 years old. The problem with the new Model 700s is that they are using the same eqpt and over the course of several decades and millions of rifles made, the tolerences on the tooling eqpt is beginning to slide.
I've shot Rem 700s since I was a young lad. I'm 50 now and I've found the older ones are usually better in the accuracy dept. Of all the various variations of the Model 700, I like the 700 Classic version. They made them in a different caliber every year and one year they made them in .308 Win. I've got the Model 700 Classic in 6.5x55 Swedish, 350 rem Mag and 375 H&H Mag and all of them are outstanding rifles.