Storing Chocolate

While finishing his Christmas shopping my son in law stopped in a
chocolate shop to buy some chocolates. While there the sales woman asked if
he'd like to sign up for their chocolate contest and try to win a chocolate
Santa. "What the heck, why not. I never win anything any way!" Yep, you
guessed it the chocolate Santa turned out to be 3 feet tall and 30 pounds!
We kept it until Christmas day and after dinner everyone "helped" break
it apart and took some home. We still have quite a bit left. I've vacuumed
sealed what was left with my Food Saver in gallon bags. Can I store it in
the basement where it's cool or should I put it in the freezer? What is the
best way to store this and how long can I keep it?