I am not sure about the goggles myself .... nearly have all the bits to get a screen based FPV system going. But since I am going to be ordering a new Taranis radio as I need more channels for my 2 axis gimbal to do what I want .... thought I might get some goggles too 
yogi
The Taranis is very popular, but you don't necessarily have to have more than 8 channels to control your gimbal. The flight control board can sometimes control the gimbal by allowing channel 7 and 8 to control pitch and roll. The APM is a good example. But for auto tuning and other functions, yes, you can run out of channels. Having said that, if I thought about things a bit more rather than jump in with both feet, I would have bought the Taranis. How could you argue with a 16+ channel radio for under $200
The resolution of most of the googles at best seems to be 640x480, which you can get with the small 7 inch monitors. The advantage of the googles seems to be the 'immersion' factor which can make some people feel sick, sort of like motion sickness. I reckon this is going to happen to me. I was in my sons room watching him play the new version of Wolfenstein which is a first person shooter game, I felt sick watching that on a 50 inch plasma, so the chances of me feeling sick with goggles is probably going to be pretty high.
I'm planning on planting my bum in a comfy chair with my camera tripod setup next to me and seeing how both the monitor and goggles go. I'm in the process of hooking up a video recorder to the monitor, which means I have to pull the back off and hook up the receiver to the DVR and then the DVR back into the monitor. I didn't think about this before (jumped in with both feet again) and I should have bought a simple monitor and separate receiver and DVR, it would have made life a lot easier.
What frame and flight control board are you getting?
