Not necessarily for the tank itself, but critical none the less I think . . . GFI outlet for where you tank electricals will plug in. If you don't want to install a whole new wallplug, get an inline one to plug your powerstrips into. A plain ol' powerstrip by itself just ain't gonna do it.
I use the SHOCK BUSTER brand, one of which is a 4-plex box (With its own on/off switch, very handy) on the end of a 6-foot cord with the GFI unit built into the plug housing. I have two, one at each end of the stand with the return pump, one heater, and one PH plugged into one, with another heater, PH and the skimmer pump plugged into the other. That way, if one GFI trips, I'll still have some heating and water circulation. The lights are on another SHOCK BUSTER GFI cord o their own.
I would replace heater with heaterS . . . besides the extra ones for prepping waterchange water that chuckcac mentioned, I think you'll get better, more even heating with two smaller heaters (That add up to the wattage you want) than with one. You'll also be able to maintain some heating if one heater fails . . . with a single heater, if it fails you have no heating at all.
