Go with a home theature surge protector. They are designed to have a tv, stero, dvd player, etc etc running off them at the same time. Some steros pump ALOT of juice. Over kill is always better than under kill. Expect to drop upwards of 40-50 on a good good one. like 1500+ joule rated. You get what you pay for.

Wheres electronics going to be stored? If down w/ the plants, hydro or soil? If up top are you drilling holes to run wires? Are you running power into an outlet INSIDE the closet?

Very nice so far though.