Since you are requesting 3rd party integration, you have to decide on a 3rd party... it is the third party that will dictate which feeds/warez will be usuable.
Not only are the charts very good, and integration with several brokerages (not futs only though), but the capability to use multiple quote sources might fill the void while you decide on what 3rd party(s) you will use. And the price for QT is right too!