Ready to go Brushless!

I have been getting my E-Maxx ready to handle all the power of brushless and now I am not sure what motor to go with. I like the Warrior 9920 speed controller and want to run Hot IB 3800 9 cell battery packs. I want to know what motors will run cool give me long run times. I want an even mix of torque and speed and will use it for a mix of racing and bashing/jumping. I would really like to be able to consistantly get in the 45 mph range and stay cool. Is this possible? What gearing would achieve this? Is a Feigao 8 XL about right?

My truck is relatively light with a good mix of titanium, aluminum, and composite parts.