There's a band at my school called Clearspring Rescue Squad, they do screamo music.
And i found a band in california called Bucket of Fish on youtube, they do Ska.
Screamo...I'd have to listen. I like lots of music that has "screaming" in it...but IDK. That term is stretched way too far. I hate stuff like Hawthorne Heights and most of that stuff. Anything with high-pitched singing in it I can't stand (for the most part).