[Zidewinder]

Edit: Just noticed you live in Europe. They do have a SEPA option for European customers, but I imagine the process is somewhat different, and SEPA listings are relatively sparse. Sorry!

www.bitquick.co

Prerequisites: A bitcoin wallet to receive the coins, and some cash.

1: Click Buy, browse through the offers and pick one that has a reasonable price and uses a geographically convenient bank.

2: Submit your bitcoin address and your desired amount, write down the bank account info that appears, go to the bank, and deposit the specified amount of cash into the seller's account.

3: Take a picture of the deposit receipt and email it to BitQuick.

4: Bitcoins will be sent from escrow to the address you specified earlier. Done!