could we maybe get an option to disable tooltips entirely and make the BuffBroker clickthrough? :-)
It sounds like you just want an indicator. TellMeWhen or WeakAuras would be perfectly suited for this.
edit: also, can we make it work in combat? :P
Blizzard isn't too keen on players pushing one button to cast arbitrary spells based on a set of rules while in combat. The range of things possible during combat lock-down reaaaaally limits the usefulness of BuffBroker. My hands are kind of tied on this, even though it would be "nice".