Same here actually, spent the whole night in the main arena. We got in around 9ish so saw the last half hour of Arty's set which was excellent, although the atmosphere was slightly flat as it was still early. From then on I thought each act was better than the one before. DV & LM were my favourites, absolutely banging!
Did you get yourself a foam hand when Laidback Luke was on? I got a pair and had to carry them when flying home yesterday as they wouldn't fit in my bag