I'm doing a Bioware marathon up until MEA comes out, so, I'm about to beat Dragon Age Origins, wondering what gear post ending I should store on my main character as to give to my companions once I start up Awakening. Assume that if it could be bought or found in DAO, I have it.
There's a huge variety of good equipment in DA:O; it'd take a lot of time to list it all. However, if i were you-- i'd look out for the accessories Spellward, Andruil's blessing and Key to the City aswell as the armor you get from Wade in Denerim; both the dragonbone plate stuff and Evon the Great's plate armor. You don't really have to worry about gear from Origins though; you'll quickly get far better equipment.
Compare the stark contrast between Red Steel and Dragonbone to see how much better the gear in Awakening is. You could bring gear from origins that you find useful-- but you'll be fine either way. It'll only affect the early part of awakening, then mostly fade away as you get better gear.