Is everyone booking their air now? Can you do it this far ahead? I can't even begin to think about air until I know whether I can afford the trip, but I was wondering what the availability for doing miles on Star Alliance (my miles are all USAIR) will be at a later date. Any thoughts? I usually purchase coach and upgrade with miles...actually, that's the only way I have ever used my miles, but I am hoping to have enough to "purchase" the entire flight with miles. I just didn't know if availability changes when you go 100% miles.