Re: Trading question
No worries, that's a good find.
Things have different value on different realms. Are you playing on East/West? Ladder/nonladder? Hardcore/softcore?
Short answer, on ladder Um is not an HR, but on nonladder in most cases it is. With that information, you can check the price guides stickied at the top of the trade values forum for your realm, and see see what it might buy you.
We're rather welcoming in the Newcomer forum, but if you do have any more trade value questions, you can feel free to make a new topic in the trade value forum. There are alot of helpful folks there as well. Welcome to the forum.