From Australia, Go Markets are a good broker IMO, and they're controlled by a fairly hard regulator called: ASIC
I've traded with them for last 6 months since a live trial, besides my futures account, and did not find anything seriously wrong with them.
The only issue I have is the lack of a DOM with MT4, making order entry/exit/management a lot quicker and easier, also the lack of a generic choice of mount order on entry, instead of the cumbersome manual entry of SL amounts.