I use Bittrex (very easy to start and so far very trustworthy). For now I too have a small account and trade exclusively on Bittrex. As you get more experience, trading on multiple exchanges is very beneficial but even on one exchange I have been making a killing all thanks to luc and his trading methods and the experience i get every day learning more and more about trading patterns in cryptoworld. I highly suggest starting out on Bittrex and get familiar with trading because you will make horrible trades once you start to make money. I realized you really do have to learn how to control your emotions to make the decisions for you.