Grazhak the Berzerker in Rathe Mountains drops two great items for warrior:
Axe of the Slayers is a great 2 hander with both aggro and damage mitigation (
Rampage proc) great for mid levels, he also drops a nice warrior belt. Keep in mind he has a 2 hour respawn so prob just run there, kill and see if he drops anything, then be about your business.
Also the classic
Polished Granite Tomahawk from Grenix Mucktail in Highpass Hold would be a piece of cake, and similar to the axe above. has some placeholders but they are only level 17.
Banded is fine on a warrior even until around later 30's. Save up for some +hp +ac rings (platinum fire are a great bang for your buck) and I highly recommend saving up and purchasing some
Silver Chitin Hand Wraps (usually only 400p great deal!)