Jeez, Louise, I think you may have enough GAS for all of us, and that's saying something considering who hangs out in this forum!
And you're either strong as an ox or will need to hire some porters to haul all that long glass to your shoots. Most definitely looking forward to hearing about your experiences with these long lenses!
John
P.S. I'm hoping to capture and then post some good images with my X1D + 250SA combination soon. The recent weather, work and my own laziness have been conspiring against this but I've vowed to reverse the trend soon!