My first rifle was a 308 that I bought when I was 14 and I handled the recoil just fine. At that time I wasn't a very big kid either so I imagine your wife and son could handle it also. The 7-08 and 260 have always intrigued me but I have no expierence with either. Any of those 3 would be my choice. I like the 280 also but it really is just a 270 (which you already have) shooting a .284" bullet.
[Edited on 12-6-2009 by nastyjack63]
[Edited on 12-6-2009 by nastyjack63]