If you haven't tried it yet, go check out Mongo Travel. It's my new web venture, and uses the same engine as Expedia and Hotels.com. We are adding our own tours, the first are Scottish and Irish castle tours. The cool part is, if you're a member, you get up to 8% of your travel bill back, depending on how much the vendor pays us. (We give 90% back to members)
It's all Mongo, all the time.