No problem!

Here is a pretty simple guide to warrior, to help with some of the basics:

http://ffxivrealm.com/xz-articles/th...ior-guide.115/

Now, people might crucify me for telling You this, but I'm keeping the fact that you are looking for a class (and want to try tanking) that would be a little more accommodating for playing with one hand. There are a lot of bells and whistles for warrior that can simply be left out if you have a competent healer, making adjusting this class,s play for your comfort very easy. It may make your healer's life job a little more difficult, but they can just suck it up

Also, as tank, you set the pace for the dungeon, so no need to feel rushed or overwhelmed.

You also mentioned you were concerned about aoes, well lucky you, tanks can pretty much eat a few aoes if necessary with a few cool downs. Tank privilege, i like to call it!