wipper, another link for you to follow on Bollinger and other charting stuff. The menu is down the right.
http://www.onlinetradingconcepts.com/TechnicalAnalysis/MACD.html
I use bigCharts as well.
http://bigcharts.marketwatch.com/advchart/frames/frames.asp?symb=AU%3Apdz&time=8&freq=1
The above link will get you into the advanced charts and down the left side is all the options. (PDZ is a favorite spec of mine. DYOR)
Have fun
Cheers