Just installed armory + bitcoinQT synced. It takes a total of 40GB of space? i just synced bitcoinqt which takes about 20GB and then I installed armory which takes another 20GB. Now thats 40GB in space. Seems like it downloaded the blockchain twice? or is it suppose to take this much space due to armory's setup?
From the Armory web site, regarding Bitcoin-QT and/or Bitcoind:


  Regardless of which one you use, it will download the entire blockchain (12-20 GB at the time of this writing).  The latest version of Armory will effectively double that storage requirement ...