bitcoin.de is a blessing compared to all the other exchanges, very nice design and functions, you don't have to deposit money on it, only bitcoins, and you pay directly to the seller with bank transfer, and you can even spend up to $2,500 before needing a complete registration...only problem, if we want to call it so, is that you need to be in the Euro zone, sorry Americans&Asians&rest of the world  btc-e and the others are good only for coin-coin exchanges...anyway I have no affiliation at all with bitcoin.de, just sharing my experiences, all other exchanges should be like that, and not only for the Euro zone...