From the used prices I've seen being asked for the 7250 (low to mid 200s; I'm currently debating picking one up for a bedroom system, so fond are my memories of my old 7240), I don't know if you really could better the NAD's phono stage, as it actually is pretty good for the money--back then a good phono stage was still important. But if you put a little more in the pot you certainly will be able to get a better separate phono stage. You might want to try the NAD as Twl suggested and see how you like it before making any final decisions.
