Wow,

i wanted to use them too but now i would think twice before i send my money to them. thanks

So which exchange sites are secure? mt gox, scryptsy?

This can be achieved easily. It's allready above 1000$ as we speak.  The more exposure bitcoin gets in the news the more people are intested in buying them, which will increase in the long run.

btc-e and bitcoinx are reliable exchange sites.