1) Free Indicator with BUY/SELL

CCI Arrows ( source: free from the web)

CCI Arrows MetaTrader indicator — will show you where the CCI cross with the zero occur (marking it with the red or blue arrow) to help you decide whether to go short or long. It has a minimal lag and a relatively high accuracy. This simple indicator is a good choice for those traders that prefer to keep it simple and hate complex indicators. The indicator is available in MT4 and MT5 versions.

Input parameters:

• CCI_Period (default = 14) — the period of the CCI that is used in this indicator. The higher is the value the more lags this indicator but less false signals occur.

 As you can see, this indicator gives direct signals for buy (blue arrow pointing up) and sell (red arrow pointing down). You should know that you do NOT enter the trade if the signal is contradicting the current general trend. If it's uptrend and you get a blue arrow — go long, if you get a red arrow — do nothing (just close your long position if you had one open); if it's downtrend and you get blue arrow — close short position but don't go long, if you get red arrow — go short; if chart goes sideways and you get blue or red arrow — feel free to go long or short respectively. I recommend setting your stop-loss directly at the level where the arrow is drawn (it's displayed if you point your mouse at it). I also recommend using trailing stop with this indicator.

Downloads:

CCI Arrows for MetaTrader 4 in .zip


2) 'Currency Ring'
100% Free Interesting Trading Strategy ( source: available for free on the web )
This is a trading method which has been around for some time now. Many people have
reported good success rate with it. In this method, we are going to trade 3 pair at the same
time, the 3 pairs together form what we call a 'Currency Ring'. The main property of a
Currency Ring is that, altogether, they share the same number of currencies. The most
popular rings are as follows:
AUD/JPY
AUD/USD
USD/JPY
CHF/JPY
CHF/USD
USD/JPY
EUR/JPY
EUR/AUD