Well, you can try LMAX.com. They are an ECN exchange, and so far, for me, they have been executing all my orders without requotes.
You can check Forexpeacearmy.com for reviews of other brokers, but stay away from Capital Spreads. They stop hunt you, and their spreads can increase up to 40 pips during news times. And of course, constant requotes. Have lost a lot of money to their shady practices.
I am not advocating here for any one, just my 2 cents.
Also dukascopy.com of Switzerland is good and is an ecn broker too but require higher starting deposits.
Point is, for the OP, you can make a ROI through trading far more than properties or bonds can give you, if you are patient.