First thing im gonna do is charge it! With this huge battery, it will take longer to charge... And a dead battery is the last thing i want to happen especially when trying a new toy!
'Browsing through past purchases choosing what to install again!'
Is there an easy place to see which apps you've bought on the app store now? I know you can see the names in the history section, but that's not very user friendly.
Turn it on, marvel in the glory that is the Retina Display, spend too much time deciding on a wallpaper, hop on the couch with a pre-St. Paddy's Day beer, and then download these apps: