fwiw i think it´s a good call to take a year out from uni, a lot of the worth of a degree is in the employment opportunities that come up for new graduates, so the timing of completion is more important than people realise.
if i was hiring and presented with several basically similar cv´s i´d definately favor the guys with the pilots licences, the one´s who´d cycled across america or been to the summit of everest, you get the idea. in that sense a PPL could be excellent value for money.
i would echo what has been said about getting a class 1 medical, flying has a way of snowballing and although people get into it planning only a PPL it´s not long before you start wondering what if.
the theoretical part of the course is no big deal, imho its cheaper, more effective and more efficient to self study than go to a ground school. i also feel like it´s better to be well into the studying process before actually flying, you´ll get more out of it that way.