Check out anything on Topshelf records. A lot of the bands you've listed down there are already signed to them. There's a lot of interesting post-hardcore (or emo/screamo, whatever you want to call it) work there, as well as some nice math rock.
Also check out bands related to those you have listed. With Saetia, for instance, Off Minor and Hot Cross are both bands related to them (Off Minor are fantastic), but I suppose you've already heard of those guys, especially if you have a pg.99 avatar xD.
I would recommend you check out a lot of 90s - here's a good place to start: A How To Guide To Emotional Hardcore
. My favourites listed there would be Portraits of Past, Indian Summer, Heroin, Moss Icon, and Orchid (Orchid were playing in the 00s but they started in the 90s - totally counts). Oh yeah, and Rites of Spring are fantastic, but practically everyone who's into post-hardcore has likely heard of them (at least I hope that's right now, otherwise I sound like a total hipster).