Actually its as easy like that @sandymeyer .. On the day Hive goes online your coins will be snapshoted:

Example: If your Steem account has 10 STEEM, 5 SBD, and 1000 SP, your new Hive account will have 10 HIVE, 5 HBD, and 1000 HP.

So just wait until Friday and leave everything in your Steem Wallet ^^ .. Then just log into hive (exactly the same keys) and you can start there ;) .. After that you are free to decide what to do with your SP, Steem and SBD. But I would advise you to wait until Friday and the Snapshot. They are trying really hard to make this all as smooth as possible for the community. Only ones that will get nothing on the new chain are Justin and his supporters. They will be just ignored, hahaha

Thank you so much everyone who worked so hard (and super fast) in making this all possible !