What size are you looking for? That's pretty essential, I love my Acer monitor, it is 24in, 2ms response time and 60hz, all on discount for about 130-140. And by connectivity do you mean connecting to the network?
I will not dispute the fact of 5ms being a lie (since I simply don't know). But It has to actually mean something calculable. If for no other reason then someone would simply claim they were 5ms or 2ms and no one would be over that. Since it was "fake."
Regardless of that - I did look at the asus pb238q and it seems nice. However you said if you could go 20 over my budget you had a nicer suggestion. Unless you meant the asus pb238q being 20 over the Viewsonic I mentioned?