Pretty much the whole of the Northam, a lot of Kingsland North and Itchen North stand up anyway. I don't remember the last time I sat down during a game (except at half time).
As for the Hillsboroigh worries, it's really not comparable now is it? For starters the electronic turnstiles mean that you can only get into the section your ticket is for. I don't really understand why people are against it. No one is going to be forced to stand if they don't want to.