A Resident Who Probabably Won't Be Resident Long

I noticed this rather interesting resident in our house a while back. I snapped some pictures, and showed Annette. That was probably not wise as she hates spiders in the house, and will probably end this one's life eventually. However, I kind of like the look of him/her. As far as I can determine this is an Orb weaver spider, but if someone knows differently, I would love to know. BTW, they are harmless to humans.