A shield is not an off-hand item in that sense. So no.
@Freia, Blizzard will tell you: "it's optional. Do you really need that upgrade to progress further?"
Where you will say: "I am a hardcore raider, i need to be competitive, it's mandatory!" ^^ That's basicly what we see on Blizz forums anyway
Can we get rid of this 'Setup of The Month' bs. I've been putting computers together for 20 years and I don't really think it's useful. There are generally better bang for buck options that i could think of. Fire that guy, hire me..... I can put together components and name them wangsniffer and assmelter, too.
If you come to mmo champ for computer hardware advice something is wrong and you need to go buy some alienware garbage and get suckered by geek squad when you break it.