Thanks for all the great info.

I already have a Watt meter. I'm thinking the best option for me is probably to go with the ICE HV ESC and use it's data logging capabilities, at least in the interim. I think the Eagle Tree with all the add-ons is a little overwhelming since this is my first venture into electric flight, and I only have two summers experience with RC in general. The Watt meter and the Phoenix ICE will help me get a safe, working setup and monitor the basics. Once I'm a little more comfortable with all this and start to notice the nuances of electric flight, the Eagle Tree will probably be a nice upgrade. This will also help spread out the cost since the ICE HV is a relatively inexpensive controller and already includes some logging capabilities.

I will definitely shoot for having the Eagle Tree and the LCD on board in the future.

I guess one other question would be the difference between the Phoenix HV85 and the Phoenix ICE HV 80 controllers - the ICE is a bit less expensive, is it missing anything important?