Joel, inspiration from your site is what prompted me to try this in the first place! I think I will try my tiny N. villosa out there too now that they are relatively easy to get.
I've tried a couple others out there with results not as promising. Currently there is a N. x ventrata struggling out there. The problem, I think, is that we just don't get WARM enough for some of them. Many days go by, even in the middle of summer, where temps don't go above the low sixties. For example, today is supposed to hit 67F, and it's going to be the warmest day of the week! However, I'm going to start trying to move some of the highlanders out, though, and see what happens. That would greatly increase my growing area, which means I have room for MORE neps!!