Take $250 open an account at Oanda, take the other $250 and open a poker account at Full Tilt or Pokerstars and whichever account you still have a balance with after 30 days stick with that.
Overnight margin for 6E is not $7520, a lot of spot EUR/USD is â¬100000 and 6E is â¬125000 that's why there is a difference in tick value. Your have no idea what you are talking about.