Guy where do you have your BC? Where is the safest place? Is it safe on mintpal or is it better to store them in your offline wallet?
1. Get the cheapest possible computer
2. Connect it online
3. Do a fresh Linux install
4. Install wallet
5. Transfer Blackcoins
6. Keep it on 24/7
And of course have an offline backup of the wallet or ten. You have to understand that coins themselves secure the network and bunch of coins on corrupt network won't be worth much.