I have two pair of Ugg boots (I know, can you believe it?). The most recent pair are these moto boots that I got at the NAS: http://shop.nordstrom.com/s/ug.....tback=7148
My take on them is that they run true to size. I have a pretty bad bunion, so I did have to stretch out my first pair a bit with a shoe stretcher. They're a tan nubuck low-heeled bootie, like a desert boot, that I got last spring. I can't find a link for them anymore. For the moto boots, I sized up a half a size, and they're perfect for me.
I've been very happy with both of them. I've worn the desert boots a ton of times, and I've just started wearing the moto boots. I love the ones you picked out!