@ Raymon:
In my opinion, if you want to trade seriously, I suggest choosing a broker that is already regulated by a credible international regulatory body, namely: CFTC, NFA, FCA, FSA, FINMA, MiFID, ASIC and FMA.
A credible regulatory body is one that has been tested and is world-recognized, and imposes strict sanctions on brokers if they are found to have violated agreed-upon terms. The regulatory body is also responsible for the security of client funds.
Regarding deposits and withdrawals, for safety I suggest doing it via wire transfer (bank-to-bank transfer) or via credit card. If you use a third party, if that company scams, there is a high probability that your funds will be lost.