I don't think I'm going to add anything particularly original here, but think more about what tone and volume you want and what kind of style you want to play. (E.g. lots of plectrum stuff or mainly fingers.) Also watch out for the action-how high the strings are off the fingerboard. My first guitar had quite a high action- when I started my fingers suffered a little bit and when I moved on to doing barre chords etc I had to really train up my hand and arm to exert enough pressure on the strings.