Where can I find really good, unknown deals on Paris hotels and airline tickets online?

Where can I find some really good deals on a trip to paris- hotels and airline tickets, for june of this year. I obviously know about travelocity, priceline, etc, and the comparison features, but are there any really good, insider websites, or is there a good time to book everything (early or late). Any related info would be greatly appreciated.

what is a good escorted tour site for just paris that includes hotels and flights?

what is a good escorted tour site for just paris that includes hotels and flights?
i’m planning on going next summer at the end of may/beginning of june. sites like contiki or goaheadtours. i’m looking around for the cheapest one. also when would be a good time to book it. now or next year?