You could get the vr goggles with
www.rc-tech.ch they sell the goggles with giroscope included, also you can get some good vr goggles at
www.icuiti.com, these are really good, and you coud buy the head giroscope separate in rc-tech.
I found a good aerial system wireless cam at
www.tinywireless.com, you could make a good combo at reasonable price.