The Purdy Neat Stealth is a good bag. Heavy, built like a tank, high capacity for those long trips. Remember that your suitcase is about to become your mobile home, get one you will enjoy.
As far as flight case, I was looking for cheap and durable, and bought the aluminum tool box version from Harbor Freight. $30 plus shipping, and it does everything that I need it to do, and I really don't see it breaking anytime soon. Maybe not as "hip" as a black leather one, but many that fly for our airline carry them, and if I do end up trading it in someday for a nice Scott leather, I'm still only out about $30. Someone posted a link to it the other day, I'll look for that...