As Sandra said, there are hundreds of systems and strategies but choosing one of them can be a challenge and you really need to figure out what your needs are.

If you are going to swing trade or if you have little time to trade the Forex market, then I would recommend a system that will allow you to make profitable trades without investing too much of your time. 

The UST, Ultimate Swing Trader , is not only a simple and inexpensive system you can trade in as little as 10 minutes a day.  The system gives you exact entry and exit points, along with exact targets leaving nothing to chance.

It's my "killer" system.