Rootsrockreggae: judging by your moniker, you're going to want a subwoofer at some point, so that is something to consider, probably even before you get a stand-alone phono stage. The Hsu Research subs are excellent and affordable. Longer term, I'd say you'll be hankering for an amplifier with more (reggae) grunt than the NAD can provide.
Give an idea of the budget you've got in mind, and you'll get more specific suggestions.
Give an idea of the budget you've got in mind, and you'll get more specific suggestions.