well mt gox is currently selling at $446.90

and crypto-trade is at $651.01

[link to scrnch.me]

so buy on mtgox and sell at crypto-trade easy $205 profit

an even better currency is unobtanium it was $2.70 a few weeks ago and now it's $21.98

it has a maximum of 250,000 coins and will be blasting past bitcoin in the near future