I used a pet relocation company to move coast-to-coast - a good one will check all the flights as far as weather forecasts, ground temperature at any stopovers, etc - I was scared shitless but they did a great job and he got here with no problems at all :-)
The only problem is that they're very expensive - it cost about $700-$800 for one cat, I can't imagine how much it would cost for seven of them
