Taming of the ... shrew?!

This evening, after Jackie completely creamed me on the squash court, we came home and created quite the feast. I rolled out the tortillas (from scratch!), whilst Jackie mixed up the guacamole (made from avocados I hand carried in from Uganda). Man, it was amazingly delicious! Anyways, there were a few tortillas left, even though we both stuffed ourselves silly because it tasted so good. So I went to get a ziplock bag out of the drawer to keep them in.

I wasn't paying any attention as I opened the drawer, so you can imagine my surprise when this is what I found:

I screamed from the surprise, which brought Jackie running, though this little guy just kinda stood there and sniffed around a bit. Maybe our garlic breath (one of the reasons the guacamole was so good was because of all the garlic in it!) which stunned him. Or maybe he just realized he didn't have anywhere to go. So I ran to get my camera and we took a few photos of the little guy. Jackie's first comment was, "Oh, he's so cute, he looks like something out of Beatrix Potter." And in the same breath, she said, "Let's feed him to Zane!".
He is kinda cute. But I don't really want him living in my drawers. So Jackie took the drawer out to the verandah, and I brought Zane out to the verandah. And Zane and this little rodent are going to stay in the verandah until one of them conquers the other. When we dumped out the drawer, there was a bit of a chase, but then the little thing went behind some boxes underneath the "day bed", and no matter how much I poke and prod with a stick, I can't seem to dislodge him. So my dear little hunting cat has curled up and gone to sleep! Hopefully once I go to bed, though, these two can duke it out...

But does anyone have any idea of what this creature is? I'm thinking it might be a shrew of some sort, but I'm not sure. All I know is it's not a mouse and it's not a rat. Any ideas?