http://www.chart-ex.com/ These guys have a variety of price-at-volume charts that are unusual. http://www.seasonalcharts.com/ Seasonal price charts http://futures.tradingcharts.com/ The "usual" charts
Pro Realtime have fantastic free charts. They dont cover nybot stuff though, just cbot/cme IIRC- so no sugar, cotton, oj etc.
TFC-CHARTS.COM these are great! yoy can create your own default menu. they have daily, weekly, monthly charts for the same market. you can activate MACDs/ etc. check it out!