I keep mine in a bucket of minibog, outside, and bring it inside to the coldish attic for the winter. Buffalo, NY gets pretty cold to keep outside! VFT's thrive in swampy conditions, with lots of light. They do best when kept outside.
What / how would you like to grow them? Where are you living? Before I adopted my buckets of minibog, I used to have the pots sitting in plastice trays with water. I found that having a bucket filled with peat, sand, and LFS, retains the moisture more effectively, especially on hot summer days.
I also had the opportunity to bring home deionized water from the lab in which I worked, as well as a stream that ran behind our townhouse. Is provision of water an issue for you?