Yes, a point would be a perfectly respectable result. 7 points from this run of three games would be incredible. However, I have a feeling Arsenal will have a point to prove after the VP result, so it's going to be a very tough night's work.
That said, Brighton had them under a lot of pressure after they came back to 2-1 today, and were much the better side for 20 minutes after they scored. You can definitely get at them, and however motivated they are, I guarantee the crowd will start to get twitchy if we get a foothold at any point...