>>296855594
assuming you have a working computer that you're going to use with the headset, you'll probably want to set up the Oculus software and SteamVR before it arrives, and maybe get a few games/experiences downloaded.
Half-Life: Alyx is 60+ gb and Asgard's Wrath is over triple that, so get those installed in advance if you wanted to play them, most everything else is very small filesize-wise.