In terms of electrical setup - i have decided to go for the easy route of having separate power sources for the fan and light. I don't know much about diy electrical but i know enough to hook up the PC fan to a dc power source by stripping back the cables and twisting the correct cables together... but that's about the extent. If you know an electrician you could have a neat setup all going to a single power outlet using a transformer and a power splitter which would save some space.
More to come.