Nope, just a 10 (or 12mm, can't remember) socket for the 4 cam-cover bolts and the cable cover, then lever the washers off the cam cover studs _carefully_ (they perish and break quite easily if they are old), disconnect the breather and PCV hoses, take the spark plug leads out then just pull the cover off. IF it hasn't been removed before the cover will probably be fairly stuck to the head though, so a couple of whacks with a rubber mallet down underneath the cambelt end (where the cable-cover bolts down on the exhaust side) should loosen it up.
You can disconnect the harness from the air-con etc if you wish, but it should _just_ slide over the covers whilst connected if you don't want to start unplugging things and then forget where they go