A new art room! How wonderful! As for room design, if you have a kiln, INSIST on a separate room with ventilation to the outside. I would also have more than one sink area ( mine gets so congested). Also, separate areas for two-dimensional and three-dimensional work, i.e. a place for drawing lessons away from the ceramics area.
As for computer lessons, I've gotten a few from The Art Teacher Connection. I don't have a web address, but if you search using that title, you should find it.