Happy NGD Tony! Hope you enjoy her! I sold my classical (actually it was bought for my wife) to a friend a couple years ago and have really missed it. Really fun to play and I enjoyed the softer tones. As far as strings go: Here are a few good brands to consider..Savarez, Hannabach, La Bella (Professional series) and D'Addario.
Here's a few things to consider when looking for classical strings...
Tension -- Classic guitar strings are made in different tensions. They are: low tension also referred to as moderate or light, normal or medium tension, hard or high tension. There are some other tensions....
String material -- Treble nylon guitar strings can be made with clear or rectified nylon. Clear nylon strings are extruded and then calibrated for accuracy. Rectified nylon strings are extruded and then ground to produce a string that will play in tune. They have a very fine roughness of texture. Treble strings are also made of carbon fiber and composite materials. Bass strings are primarily made of bronze wire or silver plated copper wire wound around a core of fine threads. Silver wound strings tend to last longer than bronze wound but bronze has better tone (IMO)
Also keep in mind ,if you decide to lower the action, That nylon strings vibrate more due to reduced tension and therefore usually can't be as low as steel strings without buzzing... Just be sure to take it real slow with your adjustments and you should do fine with it
-Pix