You don't really have to team with other parties. There are some good explanations on the interwebs about Bitcoin and how to use it (Google it). If you want to buy bitcoins with iDeal, the best options are:
satos.nl (best rates)
You can use an online wallet like blockchain.info or a wallet on your computer like Bitcoin core. Bitcoin core has to download all transaction history to your computer so that will occupy 10's of gigabytes on your hard drive. Another option for on your computer is MultiBit or Electrum. Those are called light wallets and use the blockchain data in the cloud, so that won't take much space on your harddisk.
I hope you will get into Bitcoin!