I am switching hosting companies, and there may be some down time (probably no more than 2 days). My current hosting agreement has expired, and since it is more expensive and offers so much less space (I'm always maxing out the alloted space) I switched to not only a more reliable company, but one that offers me 1000 MB of space for a cheaper monthly price.
So far my site hasn't been "down" yet. But it probably will be shortly. No worries; I will be back soon:)